20172173

素因数分解:

$7^3\times {\mathrm{23}}^1\times {\mathrm{2557}}^1$

素因数の和:2601

約数の個数: 16

約数和(自身を含む): 24556800

約数和(自身を除く): 4384627

約数列:

[1, 7, 23, 49, 161, 343, 1127, 2557, 7889, 17899, 58811, 125293, 411677, 877051, 2881739, 20172173]

約数ペア:

[(1, 20172173), (7, 2881739), (23, 877051), (49, 411677), (161, 125293), (343, 58811), (1127, 17899), (2557, 7889)]