21249632

素因数分解:

$2^5\times {\mathrm{31}}^2\times {\mathrm{691}}^1$

素因数の和:763

約数の個数: 36

約数和(自身を含む): 43290828

約数和(自身を除く): 22041196

約数列:

[1, 2, 4, 8, 16, 31, 32, 62, 124, 248, 496, 691, 961, 992, 1382, 1922, 2764, 3844, 5528, 7688, 11056, 15376, 21421, 22112, 30752, 42842, 85684, 171368, 342736, 664051, 685472, 1328102, 2656204, 5312408, 10624816, 21249632]

約数ペア:

[(1, 21249632), (2, 10624816), (4, 5312408), (8, 2656204), (16, 1328102), (31, 685472), (32, 664051), (62, 342736), (124, 171368), (248, 85684), (496, 42842), (691, 30752), (961, 22112), (992, 21421), (1382, 15376), (1922, 11056), (2764, 7688), (3844, 5528)]