20534521

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{4013}}^1$

素因数の和:4080

約数の個数: 16

約数和(自身を含む): 25432704

約数和(自身を除く): 4898183

約数列:

[1, 7, 17, 43, 119, 301, 731, 4013, 5117, 28091, 68221, 172559, 477547, 1207913, 2933503, 20534521]

約数ペア:

[(1, 20534521), (7, 2933503), (17, 1207913), (43, 477547), (119, 172559), (301, 68221), (731, 28091), (4013, 5117)]