20769008

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{3221}}^1$

素因数の和:3273

約数の個数: 40

約数和(自身を含む): 44747136

約数和(自身を除く): 23978128

約数列:

[1, 2, 4, 8, 13, 16, 26, 31, 52, 62, 104, 124, 208, 248, 403, 496, 806, 1612, 3221, 3224, 6442, 6448, 12884, 25768, 41873, 51536, 83746, 99851, 167492, 199702, 334984, 399404, 669968, 798808, 1298063, 1597616, 2596126, 5192252, 10384504, 20769008]

約数ペア:

[(1, 20769008), (2, 10384504), (4, 5192252), (8, 2596126), (13, 1597616), (16, 1298063), (26, 798808), (31, 669968), (52, 399404), (62, 334984), (104, 199702), (124, 167492), (208, 99851), (248, 83746), (403, 51536), (496, 41873), (806, 25768), (1612, 12884), (3221, 6448), (3224, 6442)]