420120837

素因数分解:

$3^4\times {\mathrm{19}}^1\times {\mathrm{272983}}^1$

素因数の和:273014

約数の個数: 20

約数和(自身を含む): 660621280

約数和(自身を除く): 240500443

約数列:

[1, 3, 9, 19, 27, 57, 81, 171, 513, 1539, 272983, 818949, 2456847, 5186677, 7370541, 15560031, 22111623, 46680093, 140040279, 420120837]

約数ペア:

[(1, 420120837), (3, 140040279), (9, 46680093), (19, 22111623), (27, 15560031), (57, 7370541), (81, 5186677), (171, 2456847), (513, 818949), (1539, 272983)]