131369968

素因数分解:

$2^4\times {\mathrm{389}}^1\times {\mathrm{21107}}^1$

素因数の和:21504

約数の個数: 20

約数和(自身を含む): 255195720

約数和(自身を除く): 123825752

約数列:

[1, 2, 4, 8, 16, 389, 778, 1556, 3112, 6224, 21107, 42214, 84428, 168856, 337712, 8210623, 16421246, 32842492, 65684984, 131369968]

約数ペア:

[(1, 131369968), (2, 65684984), (4, 32842492), (8, 16421246), (16, 8210623), (389, 337712), (778, 168856), (1556, 84428), (3112, 42214), (6224, 21107)]