20417579

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{2521}}^1$

素因数の和:2630

約数の個数: 16

約数和(自身を含む): 25421760

約数和(自身を除く): 5004181

約数列:

[1, 7, 13, 89, 91, 623, 1157, 2521, 8099, 17647, 32773, 224369, 229411, 1570583, 2916797, 20417579]

約数ペア:

[(1, 20417579), (7, 2916797), (13, 1570583), (89, 229411), (91, 224369), (623, 32773), (1157, 17647), (2521, 8099)]