228712939

素因数分解:

$7^2\times {\mathrm{13}}^2\times {\mathrm{71}}^1\times {\mathrm{389}}^1$

素因数の和:500

約数の個数: 36

約数和(自身を含む): 292902480

約数和(自身を除く): 64189541

約数列:

[1, 7, 13, 49, 71, 91, 169, 389, 497, 637, 923, 1183, 2723, 3479, 5057, 6461, 8281, 11999, 19061, 27619, 35399, 45227, 65741, 83993, 193333, 247793, 359047, 460187, 587951, 1353331, 2513329, 3221309, 4667611, 17593303, 32673277, 228712939]

約数ペア:

[(1, 228712939), (7, 32673277), (13, 17593303), (49, 4667611), (71, 3221309), (91, 2513329), (169, 1353331), (389, 587951), (497, 460187), (637, 359047), (923, 247793), (1183, 193333), (2723, 83993), (3479, 65741), (5057, 45227), (6461, 35399), (8281, 27619), (11999, 19061)]