197402788

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{407857}}^1$

素因数の和:407883

約数の個数: 18

約数和(自身を含む): 379715798

約数和(自身を除く): 182313010

約数列:

[1, 2, 4, 11, 22, 44, 121, 242, 484, 407857, 815714, 1631428, 4486427, 8972854, 17945708, 49350697, 98701394, 197402788]

約数ペア:

[(1, 197402788), (2, 98701394), (4, 49350697), (11, 17945708), (22, 8972854), (44, 4486427), (121, 1631428), (242, 815714), (484, 407857)]