205979157

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{557}}^1\times {\mathrm{2417}}^1$

素因数の和:2997

約数の個数: 24

約数和(自身を含む): 315723096

約数和(自身を除く): 109743939

約数列:

[1, 3, 9, 17, 51, 153, 557, 1671, 2417, 5013, 7251, 9469, 21753, 28407, 41089, 85221, 123267, 369801, 1346269, 4038807, 12116421, 22886573, 68659719, 205979157]

約数ペア:

[(1, 205979157), (3, 68659719), (9, 22886573), (17, 12116421), (51, 4038807), (153, 1346269), (557, 369801), (1671, 123267), (2417, 85221), (5013, 41089), (7251, 28407), (9469, 21753)]