215681157

素因数分解:

$3^3\times {\mathrm{101}}^1\times {\mathrm{139}}^1\times {\mathrm{569}}^1$

素因数の和:818

約数の個数: 32

約数和(自身を含む): 325584000

約数和(自身を除く): 109902843

約数列:

[1, 3, 9, 27, 101, 139, 303, 417, 569, 909, 1251, 1707, 2727, 3753, 5121, 14039, 15363, 42117, 57469, 79091, 126351, 172407, 237273, 379053, 517221, 711819, 1551663, 2135457, 7988191, 23964573, 71893719, 215681157]

約数ペア:

[(1, 215681157), (3, 71893719), (9, 23964573), (27, 7988191), (101, 2135457), (139, 1551663), (303, 711819), (417, 517221), (569, 379053), (909, 237273), (1251, 172407), (1707, 126351), (2727, 79091), (3753, 57469), (5121, 42117), (14039, 15363)]