218078905

素因数分解:

$5^1\times {\mathrm{11}}^2\times {\mathrm{360461}}^1$

素因数の和:360488

約数の個数: 12

約数和(自身を含む): 287648676

約数和(自身を除く): 69569771

約数列:

[1, 5, 11, 55, 121, 605, 360461, 1802305, 3965071, 19825355, 43615781, 218078905]

約数ペア:

[(1, 218078905), (5, 43615781), (11, 19825355), (55, 3965071), (121, 1802305), (605, 360461)]