1639293826

素因数分解:

$2^1\times {\mathrm{31}}^1\times {\mathrm{1301}}^1\times {\mathrm{20323}}^1$

素因数の和:21657

約数の個数: 16

約数和(自身を含む): 2540337408

約数和(自身を除く): 901043582

約数列:

[1, 2, 31, 62, 1301, 2602, 20323, 40331, 40646, 80662, 630013, 1260026, 26440223, 52880446, 819646913, 1639293826]

約数ペア:

[(1, 1639293826), (2, 819646913), (31, 52880446), (62, 26440223), (1301, 1260026), (2602, 630013), (20323, 80662), (40331, 40646)]