18956997

素因数分解:

$3^4\times {\mathrm{227}}^1\times {\mathrm{1031}}^1$

素因数の和:1270

約数の個数: 20

約数和(自身を含む): 28470816

約数和(自身を除く): 9513819

約数列:

[1, 3, 9, 27, 81, 227, 681, 1031, 2043, 3093, 6129, 9279, 18387, 27837, 83511, 234037, 702111, 2106333, 6318999, 18956997]

約数ペア:

[(1, 18956997), (3, 6318999), (9, 2106333), (27, 702111), (81, 234037), (227, 83511), (681, 27837), (1031, 18387), (2043, 9279), (3093, 6129)]