20342445

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{137}}^1\times {\mathrm{521}}^1$

素因数の和:685

約数の個数: 32

約数和(自身を含む): 34577280

約数和(自身を除く): 14234835

約数列:

[1, 3, 5, 15, 19, 57, 95, 137, 285, 411, 521, 685, 1563, 2055, 2603, 2605, 7809, 7815, 9899, 13015, 29697, 39045, 49495, 71377, 148485, 214131, 356885, 1070655, 1356163, 4068489, 6780815, 20342445]

約数ペア:

[(1, 20342445), (3, 6780815), (5, 4068489), (15, 1356163), (19, 1070655), (57, 356885), (95, 214131), (137, 148485), (285, 71377), (411, 49495), (521, 39045), (685, 29697), (1563, 13015), (2055, 9899), (2603, 7815), (2605, 7809)]