21056552

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{223}}^1$

素因数の和:306

約数の個数: 64

約数和(自身を含む): 45964800

約数和(自身を除く): 24908248

約数列:

[1, 2, 4, 8, 11, 22, 29, 37, 44, 58, 74, 88, 116, 148, 223, 232, 296, 319, 407, 446, 638, 814, 892, 1073, 1276, 1628, 1784, 2146, 2453, 2552, 3256, 4292, 4906, 6467, 8251, 8584, 9812, 11803, 12934, 16502, 19624, 23606, 25868, 33004, 47212, 51736, 66008, 71137, 90761, 94424, 142274, 181522, 239279, 284548, 363044, 478558, 569096, 726088, 957116, 1914232, 2632069, 5264138, 10528276, 21056552]

約数ペア:

[(1, 21056552), (2, 10528276), (4, 5264138), (8, 2632069), (11, 1914232), (22, 957116), (29, 726088), (37, 569096), (44, 478558), (58, 363044), (74, 284548), (88, 239279), (116, 181522), (148, 142274), (223, 94424), (232, 90761), (296, 71137), (319, 66008), (407, 51736), (446, 47212), (638, 33004), (814, 25868), (892, 23606), (1073, 19624), (1276, 16502), (1628, 12934), (1784, 11803), (2146, 9812), (2453, 8584), (2552, 8251), (3256, 6467), (4292, 4906)]