20651005

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^2\times {\mathrm{673}}^1$

素因数の和:733

約数の個数: 24

約数和(自身を含む): 27733752

約数和(自身を除く): 7082747

約数列:

[1, 5, 17, 19, 85, 95, 323, 361, 673, 1615, 1805, 3365, 6137, 11441, 12787, 30685, 57205, 63935, 217379, 242953, 1086895, 1214765, 4130201, 20651005]

約数ペア:

[(1, 20651005), (5, 4130201), (17, 1214765), (19, 1086895), (85, 242953), (95, 217379), (323, 63935), (361, 57205), (673, 30685), (1615, 12787), (1805, 11441), (3365, 6137)]