20491638910

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{66102061}}^1$

素因数の和:66102099

約数の個数: 16

約数和(自身を含む): 38074787712

約数和(自身を除く): 17583148802

約数列:

[1, 2, 5, 10, 31, 62, 155, 310, 66102061, 132204122, 330510305, 661020610, 2049163891, 4098327782, 10245819455, 20491638910]

約数ペア:

[(1, 20491638910), (2, 10245819455), (5, 4098327782), (10, 2049163891), (31, 661020610), (62, 330510305), (155, 132204122), (310, 66102061)]