20156403

素因数分解:

$3^1\times {\mathrm{71}}^1\times {\mathrm{173}}^1\times {\mathrm{547}}^1$

素因数の和:794

約数の個数: 16

約数和(自身を含む): 27461376

約数和(自身を除く): 7304973

約数列:

[1, 3, 71, 173, 213, 519, 547, 1641, 12283, 36849, 38837, 94631, 116511, 283893, 6718801, 20156403]

約数ペア:

[(1, 20156403), (3, 6718801), (71, 283893), (173, 116511), (213, 94631), (519, 38837), (547, 36849), (1641, 12283)]