1214455

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{311}}^1$

素因数の和:398

約数の個数: 16

約数和(自身を含む): 1617408

約数和(自身を除く): 402953

約数列:

[1, 5, 11, 55, 71, 311, 355, 781, 1555, 3421, 3905, 17105, 22081, 110405, 242891, 1214455]

約数ペア:

[(1, 1214455), (5, 242891), (11, 110405), (55, 22081), (71, 17105), (311, 3905), (355, 3421), (781, 1555)]