19972798

素因数分解:

$2^1\times {\mathrm{59}}^1\times {\mathrm{193}}^1\times {\mathrm{877}}^1$

素因数の和:1131

約数の個数: 16

約数和(自身を含む): 30659760

約数和(自身を除く): 10686962

約数列:

[1, 2, 59, 118, 193, 386, 877, 1754, 11387, 22774, 51743, 103486, 169261, 338522, 9986399, 19972798]

約数ペア:

[(1, 19972798), (2, 9986399), (59, 338522), (118, 169261), (193, 103486), (386, 51743), (877, 22774), (1754, 11387)]