21070408

素因数分解:

$2^3\times {\mathrm{1087}}^1\times {\mathrm{2423}}^1$

素因数の和:3516

約数の個数: 16

約数和(自身を含む): 39559680

約数和(自身を除く): 18489272

約数列:

[1, 2, 4, 8, 1087, 2174, 2423, 4348, 4846, 8696, 9692, 19384, 2633801, 5267602, 10535204, 21070408]

約数ペア:

[(1, 21070408), (2, 10535204), (4, 5267602), (8, 2633801), (1087, 19384), (2174, 9692), (2423, 8696), (4348, 4846)]