19891417

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{241}}^1\times {\mathrm{907}}^1$

素因数の和:1168

約数の個数: 16

約数和(自身を含む): 24610432

約数和(自身を除く): 4719015

約数列:

[1, 7, 13, 91, 241, 907, 1687, 3133, 6349, 11791, 21931, 82537, 218587, 1530109, 2841631, 19891417]

約数ペア:

[(1, 19891417), (7, 2841631), (13, 1530109), (91, 218587), (241, 82537), (907, 21931), (1687, 11791), (3133, 6349)]