20809304

素因数分解:

$2^3\times {\mathrm{41}}^1\times {\mathrm{63443}}^1$

素因数の和:63490

約数の個数: 16

約数和(自身を含む): 39969720

約数和(自身を除く): 19160416

約数列:

[1, 2, 4, 8, 41, 82, 164, 328, 63443, 126886, 253772, 507544, 2601163, 5202326, 10404652, 20809304]

約数ペア:

[(1, 20809304), (2, 10404652), (4, 5202326), (8, 2601163), (41, 507544), (82, 253772), (164, 126886), (328, 63443)]