21686422

素因数分解:

$2^1\times {\mathrm{31}}^1\times {\mathrm{109}}^1\times {\mathrm{3209}}^1$

素因数の和:3351

約数の個数: 16

約数和(自身を含む): 33897600

約数和(自身を除く): 12211178

約数列:

[1, 2, 31, 62, 109, 218, 3209, 3379, 6418, 6758, 99479, 198958, 349781, 699562, 10843211, 21686422]

約数ペア:

[(1, 21686422), (2, 10843211), (31, 699562), (62, 349781), (109, 198958), (218, 99479), (3209, 6758), (3379, 6418)]