16840421

素因数分解:

${\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{181}}^1\times {\mathrm{421}}^1$

素因数の和:632

約数の個数: 16

約数和(自身を含む): 19354608

約数和(自身を除く): 2514187

約数列:

[1, 13, 17, 181, 221, 421, 2353, 3077, 5473, 7157, 40001, 76201, 93041, 990613, 1295417, 16840421]

約数ペア:

[(1, 16840421), (13, 1295417), (17, 990613), (181, 93041), (221, 76201), (421, 40001), (2353, 7157), (3077, 5473)]