391216

素因数分解:

$2^4\times 7^2\times {\mathrm{499}}^1$

素因数の和:521

約数の個数: 30

約数和(自身を含む): 883500

約数和(自身を除く): 492284

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 49, 56, 98, 112, 196, 392, 499, 784, 998, 1996, 3493, 3992, 6986, 7984, 13972, 24451, 27944, 48902, 55888, 97804, 195608, 391216]

約数ペア:

[(1, 391216), (2, 195608), (4, 97804), (7, 55888), (8, 48902), (14, 27944), (16, 24451), (28, 13972), (49, 7984), (56, 6986), (98, 3992), (112, 3493), (196, 1996), (392, 998), (499, 784)]