21940438

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{49639}}^1$

素因数の和:49671

約数の個数: 16

約数和(自身を含む): 37527840

約数和(自身を除く): 15587402

約数列:

[1, 2, 13, 17, 26, 34, 221, 442, 49639, 99278, 645307, 843863, 1290614, 1687726, 10970219, 21940438]

約数ペア:

[(1, 21940438), (2, 10970219), (13, 1687726), (17, 1290614), (26, 843863), (34, 645307), (221, 99278), (442, 49639)]