21618008

素因数分解:

$2^3\times {\mathrm{1031}}^1\times {\mathrm{2621}}^1$

素因数の和:3658

約数の個数: 16

約数和(自身を含む): 40588560

約数和(自身を除く): 18970552

約数列:

[1, 2, 4, 8, 1031, 2062, 2621, 4124, 5242, 8248, 10484, 20968, 2702251, 5404502, 10809004, 21618008]

約数ペア:

[(1, 21618008), (2, 10809004), (4, 5404502), (8, 2702251), (1031, 20968), (2062, 10484), (2621, 8248), (4124, 5242)]