20218898

素因数分解:

$2^1\times 7^1\times {\mathrm{197}}^1\times {\mathrm{7331}}^1$

素因数の和:7537

約数の個数: 16

約数和(自身を含む): 34841664

約数和(自身を除く): 14622766

約数列:

[1, 2, 7, 14, 197, 394, 1379, 2758, 7331, 14662, 51317, 102634, 1444207, 2888414, 10109449, 20218898]

約数ペア:

[(1, 20218898), (2, 10109449), (7, 2888414), (14, 1444207), (197, 102634), (394, 51317), (1379, 14662), (2758, 7331)]