21494928

素因数分解:

$2^4\times 3^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1$

素因数の和:94

約数の個数: 240

約数和(自身を含む): 75203520

約数和(自身を除く): 53708592

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 13, 14, 16, 19, 21, 24, 26, 28, 37, 38, 39, 42, 48, 49, 52, 56, 57, 74, 76, 78, 84, 91, 98, 104, 111, 112, 114, 133, 147, 148, 152, 156, 168, 182, 196, 208, 222, 228, 247, 259, 266, 273, 294, 296, 304, 312, 336, 364, 392, 399, 444, 456, 481, 494, 518, 532, 546, 588, 592, 624, 637, 703, 728, 741, 777, 784, 798, 888, 912, 931, 962, 988, 1036, 1064, 1092, 1176, 1274, 1406, 1443, 1456, 1482, 1554, 1596, 1729, 1776, 1813, 1862, 1911, 1924, 1976, 2072, 2109, 2128, 2184, 2352, 2548, 2793, 2812, 2886, 2964, 3108, 3192, 3367, 3458, 3626, 3724, 3822, 3848, 3952, 4144, 4218, 4368, 4921, 5096, 5187, 5439, 5586, 5624, 5772, 5928, 6216, 6384, 6734, 6916, 7252, 7448, 7644, 7696, 8436, 9139, 9842, 10101, 10192, 10374, 10878, 11172, 11248, 11544, 11856, 12103, 12432, 13468, 13832, 14504, 14763, 14896, 15288, 16872, 18278, 19684, 20202, 20748, 21756, 22344, 23088, 23569, 24206, 26936, 27417, 27664, 29008, 29526, 30576, 33744, 34447, 36309, 36556, 39368, 40404, 41496, 43512, 44688, 47138, 48412, 53872, 54834, 59052, 63973, 68894, 70707, 72618, 73112, 78736, 80808, 82992, 87024, 94276, 96824, 103341, 109668, 118104, 127946, 137788, 141414, 145236, 146224, 161616, 188552, 191919, 193648, 206682, 219336, 236208, 255892, 275576, 282828, 290472, 377104, 383838, 413364, 438672, 447811, 511784, 551152, 565656, 580944, 767676, 826728, 895622, 1023568, 1131312, 1343433, 1535352, 1653456, 1791244, 2686866, 3070704, 3582488, 5373732, 7164976, 10747464, 21494928]

約数ペア:

[(1, 21494928), (2, 10747464), (3, 7164976), (4, 5373732), (6, 3582488), (7, 3070704), (8, 2686866), (12, 1791244), (13, 1653456), (14, 1535352), (16, 1343433), (19, 1131312), (21, 1023568), (24, 895622), (26, 826728), (28, 767676), (37, 580944), (38, 565656), (39, 551152), (42, 511784), (48, 447811), (49, 438672), (52, 413364), (56, 383838), (57, 377104), (74, 290472), (76, 282828), (78, 275576), (84, 255892), (91, 236208), (98, 219336), (104, 206682), (111, 193648), (112, 191919), (114, 188552), (133, 161616), (147, 146224), (148, 145236), (152, 141414), (156, 137788), (168, 127946), (182, 118104), (196, 109668), (208, 103341), (222, 96824), (228, 94276), (247, 87024), (259, 82992), (266, 80808), (273, 78736), (294, 73112), (296, 72618), (304, 70707), (312, 68894), (336, 63973), (364, 59052), (392, 54834), (399, 53872), (444, 48412), (456, 47138), (481, 44688), (494, 43512), (518, 41496), (532, 40404), (546, 39368), (588, 36556), (592, 36309), (624, 34447), (637, 33744), (703, 30576), (728, 29526), (741, 29008), (777, 27664), (784, 27417), (798, 26936), (888, 24206), (912, 23569), (931, 23088), (962, 22344), (988, 21756), (1036, 20748), (1064, 20202), (1092, 19684), (1176, 18278), (1274, 16872), (1406, 15288), (1443, 14896), (1456, 14763), (1482, 14504), (1554, 13832), (1596, 13468), (1729, 12432), (1776, 12103), (1813, 11856), (1862, 11544), (1911, 11248), (1924, 11172), (1976, 10878), (2072, 10374), (2109, 10192), (2128, 10101), (2184, 9842), (2352, 9139), (2548, 8436), (2793, 7696), (2812, 7644), (2886, 7448), (2964, 7252), (3108, 6916), (3192, 6734), (3367, 6384), (3458, 6216), (3626, 5928), (3724, 5772), (3822, 5624), (3848, 5586), (3952, 5439), (4144, 5187), (4218, 5096), (4368, 4921)]