499890209

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{103}}^1\times {\mathrm{401}}^1$

素因数の和:550

約数の個数: 48

約数和(自身を含む): 667255680

約数和(自身を除く): 167365471

約数列:

[1, 7, 13, 19, 49, 91, 103, 133, 247, 401, 637, 721, 931, 1339, 1729, 1957, 2807, 5047, 5213, 7619, 9373, 12103, 13699, 19649, 25441, 36491, 41303, 53333, 65611, 95893, 99047, 178087, 255437, 289121, 373331, 536939, 693329, 784757, 1246609, 2023847, 3758573, 4853303, 5493299, 10201841, 26310011, 38453093, 71412887, 499890209]

約数ペア:

[(1, 499890209), (7, 71412887), (13, 38453093), (19, 26310011), (49, 10201841), (91, 5493299), (103, 4853303), (133, 3758573), (247, 2023847), (401, 1246609), (637, 784757), (721, 693329), (931, 536939), (1339, 373331), (1729, 289121), (1957, 255437), (2807, 178087), (5047, 99047), (5213, 95893), (7619, 65611), (9373, 53333), (12103, 41303), (13699, 36491), (19649, 25441)]