21814576

素因数分解:

$2^4\times 7^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{103}}^1$

素因数の和:210

約数の個数: 80

約数和(自身を含む): 51171328

約数和(自身を除く): 29356752

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 31, 56, 61, 62, 103, 112, 122, 124, 206, 217, 244, 248, 412, 427, 434, 488, 496, 721, 824, 854, 868, 976, 1442, 1648, 1708, 1736, 1891, 2884, 3193, 3416, 3472, 3782, 5768, 6283, 6386, 6832, 7564, 11536, 12566, 12772, 13237, 15128, 22351, 25132, 25544, 26474, 30256, 43981, 44702, 50264, 51088, 52948, 87962, 89404, 100528, 105896, 175924, 178808, 194773, 211792, 351848, 357616, 389546, 703696, 779092, 1363411, 1558184, 2726822, 3116368, 5453644, 10907288, 21814576]

約数ペア:

[(1, 21814576), (2, 10907288), (4, 5453644), (7, 3116368), (8, 2726822), (14, 1558184), (16, 1363411), (28, 779092), (31, 703696), (56, 389546), (61, 357616), (62, 351848), (103, 211792), (112, 194773), (122, 178808), (124, 175924), (206, 105896), (217, 100528), (244, 89404), (248, 87962), (412, 52948), (427, 51088), (434, 50264), (488, 44702), (496, 43981), (721, 30256), (824, 26474), (854, 25544), (868, 25132), (976, 22351), (1442, 15128), (1648, 13237), (1708, 12772), (1736, 12566), (1891, 11536), (2884, 7564), (3193, 6832), (3416, 6386), (3472, 6283), (3782, 5768)]