30725721

素因数分解:

$3^2\times {\mathrm{13}}^2\times {\mathrm{20201}}^1$

素因数の和:20233

約数の個数: 18

約数和(自身を含む): 48060558

約数和(自身を除く): 17334837

約数列:

[1, 3, 9, 13, 39, 117, 169, 507, 1521, 20201, 60603, 181809, 262613, 787839, 2363517, 3413969, 10241907, 30725721]

約数ペア:

[(1, 30725721), (3, 10241907), (9, 3413969), (13, 2363517), (39, 787839), (117, 262613), (169, 181809), (507, 60603), (1521, 20201)]