20745479

素因数分解:

${\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{79}}^1\times {\mathrm{197}}^1$

素因数の和:350

約数の個数: 16

約数和(自身を含む): 22302720

約数和(自身を除く): 1557241

約数列:

[1, 31, 43, 79, 197, 1333, 2449, 3397, 6107, 8471, 15563, 105307, 262601, 482453, 669209, 20745479]

約数ペア:

[(1, 20745479), (31, 669209), (43, 482453), (79, 262601), (197, 105307), (1333, 15563), (2449, 8471), (3397, 6107)]