218520431

素因数分解:

${\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{283}}^1\times {\mathrm{857}}^1$

素因数の和:1210

約数の個数: 16

約数和(自身を含む): 236849184

約数和(自身を除く): 18328753

約数列:

[1, 17, 53, 283, 857, 901, 4811, 14569, 14999, 45421, 242531, 254983, 772157, 4123027, 12854143, 218520431]

約数ペア:

[(1, 218520431), (17, 12854143), (53, 4123027), (283, 772157), (857, 254983), (901, 242531), (4811, 45421), (14569, 14999)]