20555431

素因数分解:

${\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{281}}^1\times {\mathrm{331}}^1$

素因数の和:642

約数の個数: 16

約数和(自身を含む): 23593248

約数和(自身を除く): 3037817

約数列:

[1, 13, 17, 221, 281, 331, 3653, 4303, 4777, 5627, 62101, 73151, 93011, 1209143, 1581187, 20555431]

約数ペア:

[(1, 20555431), (13, 1581187), (17, 1209143), (221, 93011), (281, 73151), (331, 62101), (3653, 5627), (4303, 4777)]