2021445

素因数分解:

$3^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{1549}}^1$

素因数の和:1589

約数の個数: 24

約数和(自身を含む): 3627000

約数和(自身を除く): 1605555

約数列:

[1, 3, 5, 9, 15, 29, 45, 87, 145, 261, 435, 1305, 1549, 4647, 7745, 13941, 23235, 44921, 69705, 134763, 224605, 404289, 673815, 2021445]

約数ペア:

[(1, 2021445), (3, 673815), (5, 404289), (9, 224605), (15, 134763), (29, 69705), (45, 44921), (87, 23235), (145, 13941), (261, 7745), (435, 4647), (1305, 1549)]