21034955

素因数分解:

$5^1\times {\mathrm{43}}^1\times {\mathrm{227}}^1\times {\mathrm{431}}^1$

素因数の和:706

約数の個数: 16

約数和(自身を含む): 26002944

約数和(自身を除く): 4967989

約数列:

[1, 5, 43, 215, 227, 431, 1135, 2155, 9761, 18533, 48805, 92665, 97837, 489185, 4206991, 21034955]

約数ペア:

[(1, 21034955), (5, 4206991), (43, 489185), (215, 97837), (227, 92665), (431, 48805), (1135, 18533), (2155, 9761)]