20131355

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{2381}}^1$

素因数の和:2494

約数の個数: 16

約数和(自身を含む): 25725600

約数和(自身を除く): 5594245

約数列:

[1, 5, 19, 89, 95, 445, 1691, 2381, 8455, 11905, 45239, 211909, 226195, 1059545, 4026271, 20131355]

約数ペア:

[(1, 20131355), (5, 4026271), (19, 1059545), (89, 226195), (95, 211909), (445, 45239), (1691, 11905), (2381, 8455)]