42107121

素因数分解:

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

素因数の和:232

約数の個数: 45

約数和(自身を含む): 73887561

約数和(自身を除く): 31780440

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 81, 103, 147, 189, 309, 441, 567, 721, 927, 1323, 2163, 2781, 3969, 5047, 6489, 8343, 10609, 15141, 19467, 31827, 45423, 58401, 74263, 95481, 136269, 222789, 286443, 408807, 519841, 668367, 859329, 1559523, 2005101, 4678569, 6015303, 14035707, 42107121]

約数ペア:

[(1, 42107121), (3, 14035707), (7, 6015303), (9, 4678569), (21, 2005101), (27, 1559523), (49, 859329), (63, 668367), (81, 519841), (103, 408807), (147, 286443), (189, 222789), (309, 136269), (441, 95481), (567, 74263), (721, 58401), (927, 45423), (1323, 31827), (2163, 19467), (2781, 15141), (3969, 10609), (5047, 8343)]