19894017

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{587}}^1$

素因数の和:693

約数の個数: 32

約数和(自身を含む): 31610880

約数和(自身を除く): 11716863

約数列:

[1, 3, 11, 13, 33, 39, 79, 143, 237, 429, 587, 869, 1027, 1761, 2607, 3081, 6457, 7631, 11297, 19371, 22893, 33891, 46373, 83941, 139119, 251823, 510103, 602849, 1530309, 1808547, 6631339, 19894017]

約数ペア:

[(1, 19894017), (3, 6631339), (11, 1808547), (13, 1530309), (33, 602849), (39, 510103), (79, 251823), (143, 139119), (237, 83941), (429, 46373), (587, 33891), (869, 22893), (1027, 19371), (1761, 11297), (2607, 7631), (3081, 6457)]