18164741

素因数分解:

$7^2\times {\mathrm{19}}^1\times {\mathrm{109}}^1\times {\mathrm{179}}^1$

素因数の和:321

約数の個数: 24

約数和(自身を含む): 22572000

約数和(自身を除く): 4407259

約数列:

[1, 7, 19, 49, 109, 133, 179, 763, 931, 1253, 2071, 3401, 5341, 8771, 14497, 19511, 23807, 101479, 136577, 166649, 370709, 956039, 2594963, 18164741]

約数ペア:

[(1, 18164741), (7, 2594963), (19, 956039), (49, 370709), (109, 166649), (133, 136577), (179, 101479), (763, 23807), (931, 19511), (1253, 14497), (2071, 8771), (3401, 5341)]