21056438

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{47639}}^1$

素因数の和:47671

約数の個数: 16

約数和(自身を含む): 36015840

約数和(自身を除く): 14959402

約数列:

[1, 2, 13, 17, 26, 34, 221, 442, 47639, 95278, 619307, 809863, 1238614, 1619726, 10528219, 21056438]

約数ペア:

[(1, 21056438), (2, 10528219), (13, 1619726), (17, 1238614), (26, 809863), (34, 619307), (221, 95278), (442, 47639)]