21241936

素因数分解:

$2^4\times {\mathrm{41}}^1\times {\mathrm{32381}}^1$

素因数の和:32430

約数の個数: 20

約数和(自身を含む): 42161364

約数和(自身を除く): 20919428

約数列:

[1, 2, 4, 8, 16, 41, 82, 164, 328, 656, 32381, 64762, 129524, 259048, 518096, 1327621, 2655242, 5310484, 10620968, 21241936]

約数ペア:

[(1, 21241936), (2, 10620968), (4, 5310484), (8, 2655242), (16, 1327621), (41, 518096), (82, 259048), (164, 129524), (328, 64762), (656, 32381)]