18705449

素因数分解:

$7^1\times {\mathrm{53}}^1\times {\mathrm{127}}^1\times {\mathrm{397}}^1$

素因数の和:584

約数の個数: 16

約数和(自身を含む): 22007808

約数和(自身を除く): 3302359

約数列:

[1, 7, 53, 127, 371, 397, 889, 2779, 6731, 21041, 47117, 50419, 147287, 352933, 2672207, 18705449]

約数ペア:

[(1, 18705449), (7, 2672207), (53, 352933), (127, 147287), (371, 50419), (397, 47117), (889, 21041), (2779, 6731)]