21068758

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{571}}^1\times {\mathrm{971}}^1$

素因数の和:1563

約数の個数: 16

約数和(自身を含む): 33359040

約数和(自身を除く): 12290282

約数列:

[1, 2, 19, 38, 571, 971, 1142, 1942, 10849, 18449, 21698, 36898, 554441, 1108882, 10534379, 21068758]

約数ペア:

[(1, 21068758), (2, 10534379), (19, 1108882), (38, 554441), (571, 36898), (971, 21698), (1142, 18449), (1942, 10849)]