20856668

素因数分解:

$2^2\times 7^1\times {\mathrm{373}}^1\times {\mathrm{1997}}^1$

素因数の和:2381

約数の個数: 24

約数和(自身を含む): 41846112

約数和(自身を除く): 20989444

約数列:

[1, 2, 4, 7, 14, 28, 373, 746, 1492, 1997, 2611, 3994, 5222, 7988, 10444, 13979, 27958, 55916, 744881, 1489762, 2979524, 5214167, 10428334, 20856668]

約数ペア:

[(1, 20856668), (2, 10428334), (4, 5214167), (7, 2979524), (14, 1489762), (28, 744881), (373, 55916), (746, 27958), (1492, 13979), (1997, 10444), (2611, 7988), (3994, 5222)]