208984905

素因数分解:

$3^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{52181}}^1$

素因数の和:52281

約数の個数: 24

約数和(自身を含む): 366317640

約数和(自身を除く): 157332735

約数列:

[1, 3, 5, 9, 15, 45, 89, 267, 445, 801, 1335, 4005, 52181, 156543, 260905, 469629, 782715, 2348145, 4644109, 13932327, 23220545, 41796981, 69661635, 208984905]

約数ペア:

[(1, 208984905), (3, 69661635), (5, 41796981), (9, 23220545), (15, 13932327), (45, 4644109), (89, 2348145), (267, 782715), (445, 469629), (801, 260905), (1335, 156543), (4005, 52181)]