20657742

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{491851}}^1$

素因数の和:491863

約数の個数: 16

約数和(自身を含む): 47217792

約数和(自身を除く): 26560050

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 491851, 983702, 1475553, 2951106, 3442957, 6885914, 10328871, 20657742]

約数ペア:

[(1, 20657742), (2, 10328871), (3, 6885914), (6, 3442957), (7, 2951106), (14, 1475553), (21, 983702), (42, 491851)]