18900999

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{53849}}^1$

素因数の和:53871

約数の個数: 16

約数和(自身を含む): 30156000

約数和(自身を除く): 11255001

約数列:

[1, 3, 9, 13, 27, 39, 117, 351, 53849, 161547, 484641, 700037, 1453923, 2100111, 6300333, 18900999]

約数ペア:

[(1, 18900999), (3, 6300333), (9, 2100111), (13, 1453923), (27, 700037), (39, 484641), (117, 161547), (351, 53849)]