20553273

素因数分解:

$3^2\times {\mathrm{13}}^2\times {\mathrm{13513}}^1$

素因数の和:13545

約数の個数: 18

約数和(自身を含む): 32149806

約数和(自身を除く): 11596533

約数列:

[1, 3, 9, 13, 39, 117, 169, 507, 1521, 13513, 40539, 121617, 175669, 527007, 1581021, 2283697, 6851091, 20553273]

約数ペア:

[(1, 20553273), (3, 6851091), (9, 2283697), (13, 1581021), (39, 527007), (117, 175669), (169, 121617), (507, 40539), (1521, 13513)]