21696620

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{98621}}^1$

素因数の和:98641

約数の個数: 24

約数和(自身を含む): 49705488

約数和(自身を除く): 28008868

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 98621, 197242, 394484, 493105, 986210, 1084831, 1972420, 2169662, 4339324, 5424155, 10848310, 21696620]

約数ペア:

[(1, 21696620), (2, 10848310), (4, 5424155), (5, 4339324), (10, 2169662), (11, 1972420), (20, 1084831), (22, 986210), (44, 493105), (55, 394484), (110, 197242), (220, 98621)]