20902756

素因数分解:

$2^2\times 7^1\times {\mathrm{59}}^1\times {\mathrm{12653}}^1$

素因数の和:12723

約数の個数: 24

約数和(自身を含む): 42517440

約数和(自身を除く): 21614684

約数列:

[1, 2, 4, 7, 14, 28, 59, 118, 236, 413, 826, 1652, 12653, 25306, 50612, 88571, 177142, 354284, 746527, 1493054, 2986108, 5225689, 10451378, 20902756]

約数ペア:

[(1, 20902756), (2, 10451378), (4, 5225689), (7, 2986108), (14, 1493054), (28, 746527), (59, 354284), (118, 177142), (236, 88571), (413, 50612), (826, 25306), (1652, 12653)]