18756490

素因数分解:

$2^1\times 5^1\times {\mathrm{881}}^1\times {\mathrm{2129}}^1$

素因数の和:3017

約数の個数: 16

約数和(自身を含む): 33815880

約数和(自身を除く): 15059390

約数列:

[1, 2, 5, 10, 881, 1762, 2129, 4258, 4405, 8810, 10645, 21290, 1875649, 3751298, 9378245, 18756490]

約数ペア:

[(1, 18756490), (2, 9378245), (5, 3751298), (10, 1875649), (881, 21290), (1762, 10645), (2129, 8810), (4258, 4405)]