20856822

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{157}}^1\times {\mathrm{3163}}^1$

素因数の和:3332

約数の個数: 32

約数和(自身を含む): 47991552

約数和(自身を除く): 27134730

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 157, 314, 471, 942, 1099, 2198, 3163, 3297, 6326, 6594, 9489, 18978, 22141, 44282, 66423, 132846, 496591, 993182, 1489773, 2979546, 3476137, 6952274, 10428411, 20856822]

約数ペア:

[(1, 20856822), (2, 10428411), (3, 6952274), (6, 3476137), (7, 2979546), (14, 1489773), (21, 993182), (42, 496591), (157, 132846), (314, 66423), (471, 44282), (942, 22141), (1099, 18978), (2198, 9489), (3163, 6594), (3297, 6326)]