21877128

素因数分解:

$2^3\times 3^4\times 7^2\times {\mathrm{13}}^1\times {\mathrm{53}}^1$

素因数の和:98

約数の個数: 240

約数和(自身を含む): 78211980

約数和(自身を除く): 56334852

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 13, 14, 18, 21, 24, 26, 27, 28, 36, 39, 42, 49, 52, 53, 54, 56, 63, 72, 78, 81, 84, 91, 98, 104, 106, 108, 117, 126, 147, 156, 159, 162, 168, 182, 189, 196, 212, 216, 234, 252, 273, 294, 312, 318, 324, 351, 364, 371, 378, 392, 424, 441, 468, 477, 504, 546, 567, 588, 636, 637, 648, 689, 702, 728, 742, 756, 819, 882, 936, 954, 1053, 1092, 1113, 1134, 1176, 1272, 1274, 1323, 1378, 1404, 1431, 1484, 1512, 1638, 1764, 1908, 1911, 2067, 2106, 2184, 2226, 2268, 2457, 2548, 2597, 2646, 2756, 2808, 2862, 2968, 3276, 3339, 3528, 3816, 3822, 3969, 4134, 4212, 4293, 4452, 4536, 4823, 4914, 5096, 5194, 5292, 5512, 5724, 5733, 6201, 6552, 6678, 7371, 7644, 7791, 7938, 8268, 8424, 8586, 8904, 9646, 9828, 10017, 10388, 10584, 11448, 11466, 12402, 13356, 14469, 14742, 15288, 15582, 15876, 16536, 17172, 17199, 18603, 19292, 19656, 20034, 20776, 22932, 23373, 24804, 26712, 28938, 29484, 30051, 31164, 31752, 33761, 34344, 34398, 37206, 38584, 40068, 43407, 45864, 46746, 49608, 51597, 55809, 57876, 58968, 60102, 62328, 67522, 68796, 70119, 74412, 80136, 86814, 93492, 101283, 103194, 111618, 115752, 120204, 130221, 135044, 137592, 140238, 148824, 173628, 186984, 202566, 206388, 210357, 223236, 240408, 260442, 270088, 280476, 303849, 347256, 390663, 405132, 412776, 420714, 446472, 520884, 560952, 607698, 781326, 810264, 841428, 911547, 1041768, 1215396, 1562652, 1682856, 1823094, 2430792, 2734641, 3125304, 3646188, 5469282, 7292376, 10938564, 21877128]

約数ペア:

[(1, 21877128), (2, 10938564), (3, 7292376), (4, 5469282), (6, 3646188), (7, 3125304), (8, 2734641), (9, 2430792), (12, 1823094), (13, 1682856), (14, 1562652), (18, 1215396), (21, 1041768), (24, 911547), (26, 841428), (27, 810264), (28, 781326), (36, 607698), (39, 560952), (42, 520884), (49, 446472), (52, 420714), (53, 412776), (54, 405132), (56, 390663), (63, 347256), (72, 303849), (78, 280476), (81, 270088), (84, 260442), (91, 240408), (98, 223236), (104, 210357), (106, 206388), (108, 202566), (117, 186984), (126, 173628), (147, 148824), (156, 140238), (159, 137592), (162, 135044), (168, 130221), (182, 120204), (189, 115752), (196, 111618), (212, 103194), (216, 101283), (234, 93492), (252, 86814), (273, 80136), (294, 74412), (312, 70119), (318, 68796), (324, 67522), (351, 62328), (364, 60102), (371, 58968), (378, 57876), (392, 55809), (424, 51597), (441, 49608), (468, 46746), (477, 45864), (504, 43407), (546, 40068), (567, 38584), (588, 37206), (636, 34398), (637, 34344), (648, 33761), (689, 31752), (702, 31164), (728, 30051), (742, 29484), (756, 28938), (819, 26712), (882, 24804), (936, 23373), (954, 22932), (1053, 20776), (1092, 20034), (1113, 19656), (1134, 19292), (1176, 18603), (1272, 17199), (1274, 17172), (1323, 16536), (1378, 15876), (1404, 15582), (1431, 15288), (1484, 14742), (1512, 14469), (1638, 13356), (1764, 12402), (1908, 11466), (1911, 11448), (2067, 10584), (2106, 10388), (2184, 10017), (2226, 9828), (2268, 9646), (2457, 8904), (2548, 8586), (2597, 8424), (2646, 8268), (2756, 7938), (2808, 7791), (2862, 7644), (2968, 7371), (3276, 6678), (3339, 6552), (3528, 6201), (3816, 5733), (3822, 5724), (3969, 5512), (4134, 5292), (4212, 5194), (4293, 5096), (4452, 4914), (4536, 4823)]