28205121609

素因数分解:

$3^2\times 7^1\times {\mathrm{447700343}}^1$

素因数の和:447700356

約数の個数: 12

約数和(自身を含む): 46560835776

約数和(自身を除く): 18355714167

約数列:

[1, 3, 7, 9, 21, 63, 447700343, 1343101029, 3133902401, 4029303087, 9401707203, 28205121609]

約数ペア:

[(1, 28205121609), (3, 9401707203), (7, 4029303087), (9, 3133902401), (21, 1343101029), (63, 447700343)]