20217968

素因数分解:

$2^4\times {\mathrm{571}}^1\times {\mathrm{2213}}^1$

素因数の和:2792

約数の個数: 20

約数和(自身を含む): 39258648

約数和(自身を除く): 19040680

約数列:

[1, 2, 4, 8, 16, 571, 1142, 2213, 2284, 4426, 4568, 8852, 9136, 17704, 35408, 1263623, 2527246, 5054492, 10108984, 20217968]

約数ペア:

[(1, 20217968), (2, 10108984), (4, 5054492), (8, 2527246), (16, 1263623), (571, 35408), (1142, 17704), (2213, 9136), (2284, 8852), (4426, 4568)]