21797009

素因数分解:

${\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{179}}^1$

素因数の和:257

約数の個数: 32

約数和(自身を含む): 27216000

約数和(自身を除く): 5418991

約数列:

[1, 13, 17, 19, 29, 179, 221, 247, 323, 377, 493, 551, 2327, 3043, 3401, 4199, 5191, 6409, 7163, 9367, 39559, 44213, 57817, 67483, 88247, 98629, 121771, 751621, 1147211, 1282177, 1676693, 21797009]

約数ペア:

[(1, 21797009), (13, 1676693), (17, 1282177), (19, 1147211), (29, 751621), (179, 121771), (221, 98629), (247, 88247), (323, 67483), (377, 57817), (493, 44213), (551, 39559), (2327, 9367), (3043, 7163), (3401, 6409), (4199, 5191)]