210939905

素因数分解:

$5^1\times {\mathrm{11}}^2\times {\mathrm{348661}}^1$

素因数の和:348688

約数の個数: 12

約数和(自身を含む): 278232276

約数和(自身を除く): 67292371

約数列:

[1, 5, 11, 55, 121, 605, 348661, 1743305, 3835271, 19176355, 42187981, 210939905]

約数ペア:

[(1, 210939905), (5, 42187981), (11, 19176355), (55, 3835271), (121, 1743305), (605, 348661)]