13216540

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{21317}}^1$

素因数の和:21357

約数の個数: 24

約数和(自身を含む): 28651392

約数和(自身を除く): 15434852

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 21317, 42634, 85268, 106585, 213170, 426340, 660827, 1321654, 2643308, 3304135, 6608270, 13216540]

約数ペア:

[(1, 13216540), (2, 6608270), (4, 3304135), (5, 2643308), (10, 1321654), (20, 660827), (31, 426340), (62, 213170), (124, 106585), (155, 85268), (310, 42634), (620, 21317)]