20120419

素因数分解:

${\mathrm{11}}^1\times {\mathrm{97}}^1\times {\mathrm{109}}^1\times {\mathrm{173}}^1$

素因数の和:390

約数の個数: 16

約数和(自身を含む): 22508640

約数和(自身を除く): 2388221

約数列:

[1, 11, 97, 109, 173, 1067, 1199, 1903, 10573, 16781, 18857, 116303, 184591, 207427, 1829129, 20120419]

約数ペア:

[(1, 20120419), (11, 1829129), (97, 207427), (109, 184591), (173, 116303), (1067, 18857), (1199, 16781), (1903, 10573)]