20915247

素因数分解:

$3^1\times {\mathrm{109}}^1\times {\mathrm{167}}^1\times {\mathrm{383}}^1$

素因数の和:662

約数の個数: 16

約数和(自身を含む): 28385280

約数和(自身を除く): 7470033

約数列:

[1, 3, 109, 167, 327, 383, 501, 1149, 18203, 41747, 54609, 63961, 125241, 191883, 6971749, 20915247]

約数ペア:

[(1, 20915247), (3, 6971749), (109, 191883), (167, 125241), (327, 63961), (383, 54609), (501, 41747), (1149, 18203)]