1216521

素因数分解:

$3^2\times {\mathrm{29}}^1\times {\mathrm{59}}^1\times {\mathrm{79}}^1$

素因数の和:173

約数の個数: 24

約数和(自身を含む): 1872000

約数和(自身を除く): 655479

約数列:

[1, 3, 9, 29, 59, 79, 87, 177, 237, 261, 531, 711, 1711, 2291, 4661, 5133, 6873, 13983, 15399, 20619, 41949, 135169, 405507, 1216521]

約数ペア:

[(1, 1216521), (3, 405507), (9, 135169), (29, 41949), (59, 20619), (79, 15399), (87, 13983), (177, 6873), (237, 5133), (261, 4661), (531, 2291), (711, 1711)]