19213929

素因数分解:

$3^4\times 7^2\times {\mathrm{47}}^1\times {\mathrm{103}}^1$

素因数の和:176

約数の個数: 60

約数和(自身を含む): 34429824

約数和(自身を除く): 15215895

約数列:

[1, 3, 7, 9, 21, 27, 47, 49, 63, 81, 103, 141, 147, 189, 309, 329, 423, 441, 567, 721, 927, 987, 1269, 1323, 2163, 2303, 2781, 2961, 3807, 3969, 4841, 5047, 6489, 6909, 8343, 8883, 14523, 15141, 19467, 20727, 26649, 33887, 43569, 45423, 58401, 62181, 101661, 130707, 136269, 186543, 237209, 304983, 392121, 408807, 711627, 914949, 2134881, 2744847, 6404643, 19213929]

約数ペア:

[(1, 19213929), (3, 6404643), (7, 2744847), (9, 2134881), (21, 914949), (27, 711627), (47, 408807), (49, 392121), (63, 304983), (81, 237209), (103, 186543), (141, 136269), (147, 130707), (189, 101661), (309, 62181), (329, 58401), (423, 45423), (441, 43569), (567, 33887), (721, 26649), (927, 20727), (987, 19467), (1269, 15141), (1323, 14523), (2163, 8883), (2303, 8343), (2781, 6909), (2961, 6489), (3807, 5047), (3969, 4841)]