20021553

素因数分解:

$3^3\times {\mathrm{347}}^1\times {\mathrm{2137}}^1$

素因数の和:2493

約数の個数: 16

約数和(自身を含む): 29760960

約数和(自身を除く): 9739407

約数列:

[1, 3, 9, 27, 347, 1041, 2137, 3123, 6411, 9369, 19233, 57699, 741539, 2224617, 6673851, 20021553]

約数ペア:

[(1, 20021553), (3, 6673851), (9, 2224617), (27, 741539), (347, 57699), (1041, 19233), (2137, 9369), (3123, 6411)]