19128655

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{2473}}^1$

素因数の和:2515

約数の個数: 32

約数和(自身を含む): 29925504

約数和(自身を除く): 10796849

約数列:

[1, 5, 7, 13, 17, 35, 65, 85, 91, 119, 221, 455, 595, 1105, 1547, 2473, 7735, 12365, 17311, 32149, 42041, 86555, 160745, 210205, 225043, 294287, 546533, 1125215, 1471435, 2732665, 3825731, 19128655]

約数ペア:

[(1, 19128655), (5, 3825731), (7, 2732665), (13, 1471435), (17, 1125215), (35, 546533), (65, 294287), (85, 225043), (91, 210205), (119, 160745), (221, 86555), (455, 42041), (595, 32149), (1105, 17311), (1547, 12365), (2473, 7735)]