20645536832

素因数分解:

$2^6\times {\mathrm{17491}}^1\times {\mathrm{18443}}^1$

素因数の和:35946

約数の個数: 28

約数和(自身を含む): 40973050896

約数和(自身を除く): 20327514064

約数列:

[1, 2, 4, 8, 16, 32, 64, 17491, 18443, 34982, 36886, 69964, 73772, 139928, 147544, 279856, 295088, 559712, 590176, 1119424, 1180352, 322586513, 645173026, 1290346052, 2580692104, 5161384208, 10322768416, 20645536832]

約数ペア:

[(1, 20645536832), (2, 10322768416), (4, 5161384208), (8, 2580692104), (16, 1290346052), (32, 645173026), (64, 322586513), (17491, 1180352), (18443, 1119424), (34982, 590176), (36886, 559712), (69964, 295088), (73772, 279856), (139928, 147544)]