18948475

素因数分解:

$5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{8329}}^1$

素因数の和:8359

約数の個数: 24

約数和(自身を含む): 28921760

約数和(自身を除く): 9973285

約数列:

[1, 5, 7, 13, 25, 35, 65, 91, 175, 325, 455, 2275, 8329, 41645, 58303, 108277, 208225, 291515, 541385, 757939, 1457575, 2706925, 3789695, 18948475]

約数ペア:

[(1, 18948475), (5, 3789695), (7, 2706925), (13, 1457575), (25, 757939), (35, 541385), (65, 291515), (91, 208225), (175, 108277), (325, 58303), (455, 41645), (2275, 8329)]