1218969

素因数分解:

$3^4\times {\mathrm{101}}^1\times {\mathrm{149}}^1$

素因数の和:262

約数の個数: 20

約数和(自身を含む): 1851300

約数和(自身を除く): 632331

約数列:

[1, 3, 9, 27, 81, 101, 149, 303, 447, 909, 1341, 2727, 4023, 8181, 12069, 15049, 45147, 135441, 406323, 1218969]

約数ペア:

[(1, 1218969), (3, 406323), (9, 135441), (27, 45147), (81, 15049), (101, 12069), (149, 8181), (303, 4023), (447, 2727), (909, 1341)]