21118623

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{421}}^1\times {\mathrm{727}}^1$

素因数の和:1174

約数の個数: 16

約数和(自身を含む): 29492736

約数和(自身を除く): 8374113

約数列:

[1, 3, 23, 69, 421, 727, 1263, 2181, 9683, 16721, 29049, 50163, 306067, 918201, 7039541, 21118623]

約数ペア:

[(1, 21118623), (3, 7039541), (23, 918201), (69, 306067), (421, 50163), (727, 29049), (1263, 16721), (2181, 9683)]