20409584

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{98123}}^1$

素因数の和:98144

約数の個数: 20

約数和(自身を含む): 42585816

約数和(自身を除く): 22176232

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 98123, 196246, 392492, 784984, 1275599, 1569968, 2551198, 5102396, 10204792, 20409584]

約数ペア:

[(1, 20409584), (2, 10204792), (4, 5102396), (8, 2551198), (13, 1569968), (16, 1275599), (26, 784984), (52, 392492), (104, 196246), (208, 98123)]