2151688

素因数分解:

$2^3\times 7^2\times {\mathrm{11}}^1\times {\mathrm{499}}^1$

素因数の和:530

約数の個数: 48

約数和(自身を含む): 5130000

約数和(自身を除く): 2978312

約数列:

[1, 2, 4, 7, 8, 11, 14, 22, 28, 44, 49, 56, 77, 88, 98, 154, 196, 308, 392, 499, 539, 616, 998, 1078, 1996, 2156, 3493, 3992, 4312, 5489, 6986, 10978, 13972, 21956, 24451, 27944, 38423, 43912, 48902, 76846, 97804, 153692, 195608, 268961, 307384, 537922, 1075844, 2151688]

約数ペア:

[(1, 2151688), (2, 1075844), (4, 537922), (7, 307384), (8, 268961), (11, 195608), (14, 153692), (22, 97804), (28, 76846), (44, 48902), (49, 43912), (56, 38423), (77, 27944), (88, 24451), (98, 21956), (154, 13972), (196, 10978), (308, 6986), (392, 5489), (499, 4312), (539, 3992), (616, 3493), (998, 2156), (1078, 1996)]