21341680

素因数分解:

$2^4\times 5^1\times {\mathrm{29}}^1\times {\mathrm{9199}}^1$

素因数の和:9241

約数の個数: 40

約数和(自身を含む): 51336000

約数和(自身を除く): 29994320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 40, 58, 80, 116, 145, 232, 290, 464, 580, 1160, 2320, 9199, 18398, 36796, 45995, 73592, 91990, 147184, 183980, 266771, 367960, 533542, 735920, 1067084, 1333855, 2134168, 2667710, 4268336, 5335420, 10670840, 21341680]

約数ペア:

[(1, 21341680), (2, 10670840), (4, 5335420), (5, 4268336), (8, 2667710), (10, 2134168), (16, 1333855), (20, 1067084), (29, 735920), (40, 533542), (58, 367960), (80, 266771), (116, 183980), (145, 147184), (232, 91990), (290, 73592), (464, 45995), (580, 36796), (1160, 18398), (2320, 9199)]