661353

素因数分解:

$3^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{409}}^1$

素因数の和:437

約数の個数: 24

約数和(自身を含む): 1121760

約数和(自身を除く): 460407

約数列:

[1, 3, 7, 11, 21, 33, 49, 77, 147, 231, 409, 539, 1227, 1617, 2863, 4499, 8589, 13497, 20041, 31493, 60123, 94479, 220451, 661353]

約数ペア:

[(1, 661353), (3, 220451), (7, 94479), (11, 60123), (21, 31493), (33, 20041), (49, 13497), (77, 8589), (147, 4499), (231, 2863), (409, 1617), (539, 1227)]