8720703

素因数分解:

$3^4\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{151}}^1$

素因数の和:217

約数の個数: 40

約数和(自身を含む): 14125056

約数和(自身を除く): 5404353

約数列:

[1, 3, 9, 23, 27, 31, 69, 81, 93, 151, 207, 279, 453, 621, 713, 837, 1359, 1863, 2139, 2511, 3473, 4077, 4681, 6417, 10419, 12231, 14043, 19251, 31257, 42129, 57753, 93771, 107663, 126387, 281313, 322989, 379161, 968967, 2906901, 8720703]

約数ペア:

[(1, 8720703), (3, 2906901), (9, 968967), (23, 379161), (27, 322989), (31, 281313), (69, 126387), (81, 107663), (93, 93771), (151, 57753), (207, 42129), (279, 31257), (453, 19251), (621, 14043), (713, 12231), (837, 10419), (1359, 6417), (1863, 4681), (2139, 4077), (2511, 3473)]