20653969

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{83}}^1\times {\mathrm{1871}}^1$

素因数の和:1980

約数の個数: 16

約数和(自身を含む): 25159680

約数和(自身を除く): 4505711

約数列:

[1, 7, 19, 83, 133, 581, 1577, 1871, 11039, 13097, 35549, 155293, 248843, 1087051, 2950567, 20653969]

約数ペア:

[(1, 20653969), (7, 2950567), (19, 1087051), (83, 248843), (133, 155293), (581, 35549), (1577, 13097), (1871, 11039)]