20997376

素因数分解:

$2^8\times {\mathrm{82021}}^1$

素因数の和:82037

約数の個数: 18

約数和(自身を含む): 41913242

約数和(自身を除く): 20915866

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 256, 82021, 164042, 328084, 656168, 1312336, 2624672, 5249344, 10498688, 20997376]

約数ペア:

[(1, 20997376), (2, 10498688), (4, 5249344), (8, 2624672), (16, 1312336), (32, 656168), (64, 328084), (128, 164042), (256, 82021)]