18641968

素因数分解:

$2^4\times {\mathrm{107}}^1\times {\mathrm{10889}}^1$

素因数の和:11004

約数の個数: 20

約数和(自身を含む): 36459720

約数和(自身を除く): 17817752

約数列:

[1, 2, 4, 8, 16, 107, 214, 428, 856, 1712, 10889, 21778, 43556, 87112, 174224, 1165123, 2330246, 4660492, 9320984, 18641968]

約数ペア:

[(1, 18641968), (2, 9320984), (4, 4660492), (8, 2330246), (16, 1165123), (107, 174224), (214, 87112), (428, 43556), (856, 21778), (1712, 10889)]