20453727

素因数分解:

$3^1\times 7^2\times {\mathrm{61}}^1\times {\mathrm{2281}}^1$

素因数の和:2359

約数の個数: 24

約数和(自身を含む): 32258352

約数和(自身を除く): 11804625

約数列:

[1, 3, 7, 21, 49, 61, 147, 183, 427, 1281, 2281, 2989, 6843, 8967, 15967, 47901, 111769, 139141, 335307, 417423, 973987, 2921961, 6817909, 20453727]

約数ペア:

[(1, 20453727), (3, 6817909), (7, 2921961), (21, 973987), (49, 417423), (61, 335307), (147, 139141), (183, 111769), (427, 47901), (1281, 15967), (2281, 8967), (2989, 6843)]