20111745

素因数分解:

$3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{31181}}^1$

素因数の和:31232

約数の個数: 16

約数和(自身を含む): 32928192

約数和(自身を除く): 12816447

約数列:

[1, 3, 5, 15, 43, 129, 215, 645, 31181, 93543, 155905, 467715, 1340783, 4022349, 6703915, 20111745]

約数ペア:

[(1, 20111745), (3, 6703915), (5, 4022349), (15, 1340783), (43, 467715), (129, 155905), (215, 93543), (645, 31181)]