20991106

素因数分解:

$2^1\times {\mathrm{113}}^1\times {\mathrm{293}}^1\times {\mathrm{317}}^1$

素因数の和:725

約数の個数: 16

約数和(自身を含む): 31974264

約数和(自身を除く): 10983158

約数列:

[1, 2, 113, 226, 293, 317, 586, 634, 33109, 35821, 66218, 71642, 92881, 185762, 10495553, 20991106]

約数ペア:

[(1, 20991106), (2, 10495553), (113, 185762), (226, 92881), (293, 71642), (317, 66218), (586, 35821), (634, 33109)]