18019521

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{233}}^1\times {\mathrm{661}}^1$

素因数の和:913

約数の個数: 24

約数和(自身を含む): 28193256

約数和(自身を除く): 10173735

約数列:

[1, 3, 9, 13, 39, 117, 233, 661, 699, 1983, 2097, 3029, 5949, 8593, 9087, 25779, 27261, 77337, 154013, 462039, 1386117, 2002169, 6006507, 18019521]

約数ペア:

[(1, 18019521), (3, 6006507), (9, 2002169), (13, 1386117), (39, 462039), (117, 154013), (233, 77337), (661, 27261), (699, 25779), (1983, 9087), (2097, 8593), (3029, 5949)]