20547994

素因数分解:

$2^1\times {\mathrm{53}}^1\times {\mathrm{149}}^1\times {\mathrm{1301}}^1$

素因数の和:1505

約数の個数: 16

約数和(自身を含む): 31638600

約数和(自身を除く): 11090606

約数列:

[1, 2, 53, 106, 149, 298, 1301, 2602, 7897, 15794, 68953, 137906, 193849, 387698, 10273997, 20547994]

約数ペア:

[(1, 20547994), (2, 10273997), (53, 387698), (106, 193849), (149, 137906), (298, 68953), (1301, 15794), (2602, 7897)]