20851537

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{137}}^1\times {\mathrm{1279}}^1$

素因数の和:1440

約数の個数: 16

約数和(自身を含む): 25436160

約数和(自身を除く): 4584623

約数列:

[1, 7, 17, 119, 137, 959, 1279, 2329, 8953, 16303, 21743, 152201, 175223, 1226561, 2978791, 20851537]

約数ペア:

[(1, 20851537), (7, 2978791), (17, 1226561), (119, 175223), (137, 152201), (959, 21743), (1279, 16303), (2329, 8953)]