20467485

素因数分解:

$3^4\times 5^1\times {\mathrm{97}}^1\times {\mathrm{521}}^1$

素因数の和:635

約数の個数: 40

約数和(自身を含む): 37139256

約数和(自身を除く): 16671771

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 97, 135, 291, 405, 485, 521, 873, 1455, 1563, 2605, 2619, 4365, 4689, 7815, 7857, 13095, 14067, 23445, 39285, 42201, 50537, 70335, 151611, 211005, 252685, 454833, 758055, 1364499, 2274165, 4093497, 6822495, 20467485]

約数ペア:

[(1, 20467485), (3, 6822495), (5, 4093497), (9, 2274165), (15, 1364499), (27, 758055), (45, 454833), (81, 252685), (97, 211005), (135, 151611), (291, 70335), (405, 50537), (485, 42201), (521, 39285), (873, 23445), (1455, 14067), (1563, 13095), (2605, 7857), (2619, 7815), (4365, 4689)]