18877378

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{42709}}^1$

素因数の和:42741

約数の個数: 16

約数和(自身を含む): 32288760

約数和(自身を除く): 13411382

約数列:

[1, 2, 13, 17, 26, 34, 221, 442, 42709, 85418, 555217, 726053, 1110434, 1452106, 9438689, 18877378]

約数ペア:

[(1, 18877378), (2, 9438689), (13, 1452106), (17, 1110434), (26, 726053), (34, 555217), (221, 85418), (442, 42709)]