20704645

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{8609}}^1$

素因数の和:8664

約数の個数: 16

約数和(自身を含む): 27483120

約数和(自身を除く): 6778475

約数列:

[1, 5, 13, 37, 65, 185, 481, 2405, 8609, 43045, 111917, 318533, 559585, 1592665, 4140929, 20704645]

約数ペア:

[(1, 20704645), (5, 4140929), (13, 1592665), (37, 559585), (65, 318533), (185, 111917), (481, 43045), (2405, 8609)]