21754195

素因数分解:

$5^1\times {\mathrm{113}}^1\times {\mathrm{139}}^1\times {\mathrm{277}}^1$

素因数の和:534

約数の個数: 16

約数和(自身を含む): 26621280

約数和(自身を除く): 4867085

約数列:

[1, 5, 113, 139, 277, 565, 695, 1385, 15707, 31301, 38503, 78535, 156505, 192515, 4350839, 21754195]

約数ペア:

[(1, 21754195), (5, 4350839), (113, 192515), (139, 156505), (277, 78535), (565, 38503), (695, 31301), (1385, 15707)]