20975439

素因数分解:

$3^1\times {\mathrm{29}}^1\times {\mathrm{53}}^1\times {\mathrm{4549}}^1$

素因数の和:4634

約数の個数: 16

約数和(自身を含む): 29484000

約数和(自身を除く): 8508561

約数列:

[1, 3, 29, 53, 87, 159, 1537, 4549, 4611, 13647, 131921, 241097, 395763, 723291, 6991813, 20975439]

約数ペア:

[(1, 20975439), (3, 6991813), (29, 723291), (53, 395763), (87, 241097), (159, 131921), (1537, 13647), (4549, 4611)]