20457333

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{167}}^1\times {\mathrm{349}}^1$

素因数の和:538

約数の個数: 32

約数和(自身を含む): 32928000

約数和(自身を除く): 12470667

約数列:

[1, 3, 9, 13, 27, 39, 117, 167, 349, 351, 501, 1047, 1503, 2171, 3141, 4509, 4537, 6513, 9423, 13611, 19539, 40833, 58283, 58617, 122499, 174849, 524547, 757679, 1573641, 2273037, 6819111, 20457333]

約数ペア:

[(1, 20457333), (3, 6819111), (9, 2273037), (13, 1573641), (27, 757679), (39, 524547), (117, 174849), (167, 122499), (349, 58617), (351, 58283), (501, 40833), (1047, 19539), (1503, 13611), (2171, 9423), (3141, 6513), (4509, 4537)]