21928501

素因数分解:

$7^1\times {\mathrm{31}}^1\times {\mathrm{139}}^1\times {\mathrm{727}}^1$

素因数の和:904

約数の個数: 16

約数和(自身を含む): 26091520

約数和(自身を除く): 4163019

約数列:

[1, 7, 31, 139, 217, 727, 973, 4309, 5089, 22537, 30163, 101053, 157759, 707371, 3132643, 21928501]

約数ペア:

[(1, 21928501), (7, 3132643), (31, 707371), (139, 157759), (217, 101053), (727, 30163), (973, 22537), (4309, 5089)]