19651489

素因数分解:

${\mathrm{11}}^2\times {\mathrm{13}}^2\times {\mathrm{31}}^2$

素因数の和:110

約数の個数: 27

約数和(自身を含む): 24168627

約数和(自身を除く): 4517138

約数列:

[1, 11, 13, 31, 121, 143, 169, 341, 403, 961, 1573, 1859, 3751, 4433, 5239, 10571, 12493, 20449, 48763, 57629, 116281, 137423, 162409, 633919, 1511653, 1786499, 19651489]

約数ペア:

[(1, 19651489), (11, 1786499), (13, 1511653), (31, 633919), (121, 162409), (143, 137423), (169, 116281), (341, 57629), (403, 48763), (961, 20449), (1573, 12493), (1859, 10571), (3751, 5239)]