20355465

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{2221}}^1$

素因数の和:2289

約数の個数: 32

約数和(自身を含む): 35836416

約数和(自身を除く): 15480951

約数列:

[1, 3, 5, 13, 15, 39, 47, 65, 141, 195, 235, 611, 705, 1833, 2221, 3055, 6663, 9165, 11105, 28873, 33315, 86619, 104387, 144365, 313161, 433095, 521935, 1357031, 1565805, 4071093, 6785155, 20355465]

約数ペア:

[(1, 20355465), (3, 6785155), (5, 4071093), (13, 1565805), (15, 1357031), (39, 521935), (47, 433095), (65, 313161), (141, 144365), (195, 104387), (235, 86619), (611, 33315), (705, 28873), (1833, 11105), (2221, 9165), (3055, 6663)]