20553445

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{331}}^1\times {\mathrm{1129}}^1$

素因数の和:1476

約数の個数: 16

約数和(自身を含む): 27011520

約数和(自身を除く): 6458075

約数列:

[1, 5, 11, 55, 331, 1129, 1655, 3641, 5645, 12419, 18205, 62095, 373699, 1868495, 4110689, 20553445]

約数ペア:

[(1, 20553445), (5, 4110689), (11, 1868495), (55, 373699), (331, 62095), (1129, 18205), (1655, 12419), (3641, 5645)]