21252204

素因数分解:

$2^2\times 3^2\times {\mathrm{397}}^1\times {\mathrm{1487}}^1$

素因数の和:1894

約数の個数: 36

約数和(自身を含む): 53892384

約数和(自身を除く): 32640180

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 397, 794, 1191, 1487, 1588, 2382, 2974, 3573, 4461, 4764, 5948, 7146, 8922, 13383, 14292, 17844, 26766, 53532, 590339, 1180678, 1771017, 2361356, 3542034, 5313051, 7084068, 10626102, 21252204]

約数ペア:

[(1, 21252204), (2, 10626102), (3, 7084068), (4, 5313051), (6, 3542034), (9, 2361356), (12, 1771017), (18, 1180678), (36, 590339), (397, 53532), (794, 26766), (1191, 17844), (1487, 14292), (1588, 13383), (2382, 8922), (2974, 7146), (3573, 5948), (4461, 4764)]