3947347984

素因数分解:

$2^4\times {\mathrm{1109}}^1\times {\mathrm{222461}}^1$

素因数の和:223578

約数の個数: 20

約数和(自身を含む): 7654917420

約数和(自身を除く): 3707569436

約数列:

[1, 2, 4, 8, 16, 1109, 2218, 4436, 8872, 17744, 222461, 444922, 889844, 1779688, 3559376, 246709249, 493418498, 986836996, 1973673992, 3947347984]

約数ペア:

[(1, 3947347984), (2, 1973673992), (4, 986836996), (8, 493418498), (16, 246709249), (1109, 3559376), (2218, 1779688), (4436, 889844), (8872, 444922), (17744, 222461)]