121201305

素因数分解:

$3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{187909}}^1$

素因数の和:187960

約数の個数: 16

約数和(自身を含む): 198432960

約数和(自身を除く): 77231655

約数列:

[1, 3, 5, 15, 43, 129, 215, 645, 187909, 563727, 939545, 2818635, 8080087, 24240261, 40400435, 121201305]

約数ペア:

[(1, 121201305), (3, 40400435), (5, 24240261), (15, 8080087), (43, 2818635), (129, 939545), (215, 563727), (645, 187909)]