20526568

素因数分解:

$2^3\times {\mathrm{41}}^1\times {\mathrm{62581}}^1$

素因数の和:62628

約数の個数: 16

約数和(自身を含む): 39426660

約数和(自身を除く): 18900092

約数列:

[1, 2, 4, 8, 41, 82, 164, 328, 62581, 125162, 250324, 500648, 2565821, 5131642, 10263284, 20526568]

約数ペア:

[(1, 20526568), (2, 10263284), (4, 5131642), (8, 2565821), (41, 500648), (82, 250324), (164, 125162), (328, 62581)]