21261860

素因数分解:

$2^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{22619}}^1$

素因数の和:22675

約数の個数: 24

約数和(自身を含む): 45601920

約数和(自身を除く): 24340060

約数列:

[1, 2, 4, 5, 10, 20, 47, 94, 188, 235, 470, 940, 22619, 45238, 90476, 113095, 226190, 452380, 1063093, 2126186, 4252372, 5315465, 10630930, 21261860]

約数ペア:

[(1, 21261860), (2, 10630930), (4, 5315465), (5, 4252372), (10, 2126186), (20, 1063093), (47, 452380), (94, 226190), (188, 113095), (235, 90476), (470, 45238), (940, 22619)]