28538741

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{19507}}^1$

素因数の和:19544

約数の個数: 16

約数和(自身を含む): 37455360

約数和(自身を除く): 8916619

約数列:

[1, 7, 11, 19, 77, 133, 209, 1463, 19507, 136549, 214577, 370633, 1502039, 2594431, 4076963, 28538741]

約数ペア:

[(1, 28538741), (7, 4076963), (11, 2594431), (19, 1502039), (77, 370633), (133, 214577), (209, 136549), (1463, 19507)]