20875563

素因数分解:

$3^4\times {\mathrm{29}}^1\times {\mathrm{8887}}^1$

素因数の和:8928

約数の個数: 20

約数和(自身を含む): 32263440

約数和(自身を除く): 11387877

約数列:

[1, 3, 9, 27, 29, 81, 87, 261, 783, 2349, 8887, 26661, 79983, 239949, 257723, 719847, 773169, 2319507, 6958521, 20875563]

約数ペア:

[(1, 20875563), (3, 6958521), (9, 2319507), (27, 773169), (29, 719847), (81, 257723), (87, 239949), (261, 79983), (783, 26661), (2349, 8887)]