20287858

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{9049}}^1$

素因数の和:9129

約数の個数: 16

約数和(自身を含む): 32580000

約数和(自身を除く): 12292142

約数列:

[1, 2, 19, 38, 59, 118, 1121, 2242, 9049, 18098, 171931, 343862, 533891, 1067782, 10143929, 20287858]

約数ペア:

[(1, 20287858), (2, 10143929), (19, 1067782), (38, 533891), (59, 343862), (118, 171931), (1121, 18098), (2242, 9049)]