20664231

素因数分解:

$3^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{8269}}^1$

素因数の和:8303

約数の個数: 24

約数和(自身を含む): 33940080

約数和(自身を除く): 13275849

約数列:

[1, 3, 7, 17, 21, 49, 51, 119, 147, 357, 833, 2499, 8269, 24807, 57883, 140573, 173649, 405181, 421719, 984011, 1215543, 2952033, 6888077, 20664231]

約数ペア:

[(1, 20664231), (3, 6888077), (7, 2952033), (17, 1215543), (21, 984011), (49, 421719), (51, 405181), (119, 173649), (147, 140573), (357, 57883), (833, 24807), (2499, 8269)]