20897702

素因数分解:

$2^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{22279}}^1$

素因数の和:22355

約数の個数: 16

約数和(自身を含む): 36360960

約数和(自身を除く): 15463258

約数列:

[1, 2, 7, 14, 67, 134, 469, 938, 22279, 44558, 155953, 311906, 1492693, 2985386, 10448851, 20897702]

約数ペア:

[(1, 20897702), (2, 10448851), (7, 2985386), (14, 1492693), (67, 311906), (134, 155953), (469, 44558), (938, 22279)]