68490681

素因数分解:

$3^1\times 7^2\times {\mathrm{53}}^1\times {\mathrm{59}}^1\times {\mathrm{149}}^1$

素因数の和:278

約数の個数: 48

約数和(自身を含む): 110808000

約数和(自身を除く): 42317319

約数列:

[1, 3, 7, 21, 49, 53, 59, 147, 149, 159, 177, 371, 413, 447, 1043, 1113, 1239, 2597, 2891, 3127, 3129, 7301, 7791, 7897, 8673, 8791, 9381, 21889, 21903, 23691, 26373, 55279, 61537, 65667, 153223, 165837, 184611, 386953, 430759, 459669, 465923, 1160859, 1292277, 1397769, 3261461, 9784383, 22830227, 68490681]

約数ペア:

[(1, 68490681), (3, 22830227), (7, 9784383), (21, 3261461), (49, 1397769), (53, 1292277), (59, 1160859), (147, 465923), (149, 459669), (159, 430759), (177, 386953), (371, 184611), (413, 165837), (447, 153223), (1043, 65667), (1113, 61537), (1239, 55279), (2597, 26373), (2891, 23691), (3127, 21903), (3129, 21889), (7301, 9381), (7791, 8791), (7897, 8673)]