20871974

素因数分解:

$2^1\times {\mathrm{67}}^1\times {\mathrm{109}}^1\times {\mathrm{1429}}^1$

素因数の和:1607

約数の個数: 16

約数和(自身を含む): 32089200

約数和(自身を除く): 11217226

約数列:

[1, 2, 67, 109, 134, 218, 1429, 2858, 7303, 14606, 95743, 155761, 191486, 311522, 10435987, 20871974]

約数ペア:

[(1, 20871974), (2, 10435987), (67, 311522), (109, 191486), (134, 155761), (218, 95743), (1429, 14606), (2858, 7303)]