20591378

素因数分解:

$2^1\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{4957}}^1$

素因数の和:5057

約数の個数: 16

約数和(自身を含む): 32365824

約数和(自身を除く): 11774446

約数列:

[1, 2, 31, 62, 67, 134, 2077, 4154, 4957, 9914, 153667, 307334, 332119, 664238, 10295689, 20591378]

約数ペア:

[(1, 20591378), (2, 10295689), (31, 664238), (62, 332119), (67, 307334), (134, 153667), (2077, 9914), (4154, 4957)]