18900986

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{31607}}^1$

素因数の和:31645

約数の個数: 16

約数和(自身を含む): 31860864

約数和(自身を除く): 12959878

約数列:

[1, 2, 13, 23, 26, 46, 299, 598, 31607, 63214, 410891, 726961, 821782, 1453922, 9450493, 18900986]

約数ペア:

[(1, 18900986), (2, 9450493), (13, 1453922), (23, 821782), (26, 726961), (46, 410891), (299, 63214), (598, 31607)]