20456891

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{4783}}^1$

素因数の和:4850

約数の個数: 16

約数和(自身を含む): 25718784

約数和(自身を除く): 5261893

約数列:

[1, 7, 13, 47, 91, 329, 611, 4277, 4783, 33481, 62179, 224801, 435253, 1573607, 2922413, 20456891]

約数ペア:

[(1, 20456891), (7, 2922413), (13, 1573607), (47, 435253), (91, 224801), (329, 62179), (611, 33481), (4277, 4783)]