19589968

素因数分解:

$2^4\times {\mathrm{89}}^1\times {\mathrm{13757}}^1$

素因数の和:13854

約数の個数: 20

約数和(自身を含む): 38384820

約数和(自身を除く): 18794852

約数列:

[1, 2, 4, 8, 16, 89, 178, 356, 712, 1424, 13757, 27514, 55028, 110056, 220112, 1224373, 2448746, 4897492, 9794984, 19589968]

約数ペア:

[(1, 19589968), (2, 9794984), (4, 4897492), (8, 2448746), (16, 1224373), (89, 220112), (178, 110056), (356, 55028), (712, 27514), (1424, 13757)]