21188396

素因数分解:

$2^2\times {\mathrm{73}}^1\times {\mathrm{149}}^1\times {\mathrm{487}}^1$

素因数の和:713

約数の個数: 24

約数和(自身を含む): 37917600

約数和(自身を除く): 16729204

約数列:

[1, 2, 4, 73, 146, 149, 292, 298, 487, 596, 974, 1948, 10877, 21754, 35551, 43508, 71102, 72563, 142204, 145126, 290252, 5297099, 10594198, 21188396]

約数ペア:

[(1, 21188396), (2, 10594198), (4, 5297099), (73, 290252), (146, 145126), (149, 142204), (292, 72563), (298, 71102), (487, 43508), (596, 35551), (974, 21754), (1948, 10877)]