19791818

素因数分解:

$2^1\times {\mathrm{37}}^1\times {\mathrm{71}}^1\times {\mathrm{3767}}^1$

素因数の和:3877

約数の個数: 16

約数和(自身を含む): 30927744

約数和(自身を除く): 11135926

約数列:

[1, 2, 37, 71, 74, 142, 2627, 3767, 5254, 7534, 139379, 267457, 278758, 534914, 9895909, 19791818]

約数ペア:

[(1, 19791818), (2, 9895909), (37, 534914), (71, 278758), (74, 267457), (142, 139379), (2627, 7534), (3767, 5254)]