20891902

素因数分解:

$2^1\times {\mathrm{37}}^1\times {\mathrm{103}}^1\times {\mathrm{2741}}^1$

素因数の和:2883

約数の個数: 16

約数和(自身を含む): 32509152

約数和(自身を除く): 11617250

約数列:

[1, 2, 37, 74, 103, 206, 2741, 3811, 5482, 7622, 101417, 202834, 282323, 564646, 10445951, 20891902]

約数ペア:

[(1, 20891902), (2, 10445951), (37, 564646), (74, 282323), (103, 202834), (206, 101417), (2741, 7622), (3811, 5482)]