20668968

素因数分解:

$2^3\times 3^2\times {\mathrm{257}}^1\times {\mathrm{1117}}^1$

素因数の和:1386

約数の個数: 48

約数和(自身を含む): 56246580

約数和(自身を除く): 35577612

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72, 257, 514, 771, 1028, 1117, 1542, 2056, 2234, 2313, 3084, 3351, 4468, 4626, 6168, 6702, 8936, 9252, 10053, 13404, 18504, 20106, 26808, 40212, 80424, 287069, 574138, 861207, 1148276, 1722414, 2296552, 2583621, 3444828, 5167242, 6889656, 10334484, 20668968]

約数ペア:

[(1, 20668968), (2, 10334484), (3, 6889656), (4, 5167242), (6, 3444828), (8, 2583621), (9, 2296552), (12, 1722414), (18, 1148276), (24, 861207), (36, 574138), (72, 287069), (257, 80424), (514, 40212), (771, 26808), (1028, 20106), (1117, 18504), (1542, 13404), (2056, 10053), (2234, 9252), (2313, 8936), (3084, 6702), (3351, 6168), (4468, 4626)]