21249144

素因数分解:

$2^3\times 3^2\times 7^2\times {\mathrm{19}}^1\times {\mathrm{317}}^1$

素因数の和:362

約数の個数: 144

約数和(自身を含む): 70691400

約数和(自身を除く): 49442256

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 18, 19, 21, 24, 28, 36, 38, 42, 49, 56, 57, 63, 72, 76, 84, 98, 114, 126, 133, 147, 152, 168, 171, 196, 228, 252, 266, 294, 317, 342, 392, 399, 441, 456, 504, 532, 588, 634, 684, 798, 882, 931, 951, 1064, 1176, 1197, 1268, 1368, 1596, 1764, 1862, 1902, 2219, 2394, 2536, 2793, 2853, 3192, 3528, 3724, 3804, 4438, 4788, 5586, 5706, 6023, 6657, 7448, 7608, 8379, 8876, 9576, 11172, 11412, 12046, 13314, 15533, 16758, 17752, 18069, 19971, 22344, 22824, 24092, 26628, 31066, 33516, 36138, 39942, 42161, 46599, 48184, 53256, 54207, 62132, 67032, 72276, 79884, 84322, 93198, 108414, 124264, 126483, 139797, 144552, 159768, 168644, 186396, 216828, 252966, 279594, 295127, 337288, 372792, 379449, 433656, 505932, 559188, 590254, 758898, 885381, 1011864, 1118376, 1180508, 1517796, 1770762, 2361016, 2656143, 3035592, 3541524, 5312286, 7083048, 10624572, 21249144]

約数ペア:

[(1, 21249144), (2, 10624572), (3, 7083048), (4, 5312286), (6, 3541524), (7, 3035592), (8, 2656143), (9, 2361016), (12, 1770762), (14, 1517796), (18, 1180508), (19, 1118376), (21, 1011864), (24, 885381), (28, 758898), (36, 590254), (38, 559188), (42, 505932), (49, 433656), (56, 379449), (57, 372792), (63, 337288), (72, 295127), (76, 279594), (84, 252966), (98, 216828), (114, 186396), (126, 168644), (133, 159768), (147, 144552), (152, 139797), (168, 126483), (171, 124264), (196, 108414), (228, 93198), (252, 84322), (266, 79884), (294, 72276), (317, 67032), (342, 62132), (392, 54207), (399, 53256), (441, 48184), (456, 46599), (504, 42161), (532, 39942), (588, 36138), (634, 33516), (684, 31066), (798, 26628), (882, 24092), (931, 22824), (951, 22344), (1064, 19971), (1176, 18069), (1197, 17752), (1268, 16758), (1368, 15533), (1596, 13314), (1764, 12046), (1862, 11412), (1902, 11172), (2219, 9576), (2394, 8876), (2536, 8379), (2793, 7608), (2853, 7448), (3192, 6657), (3528, 6023), (3724, 5706), (3804, 5586), (4438, 4788)]