18236907

素因数分解:

$3^5\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{251}}^1$

素因数の和:302

約数の個数: 48

約数和(自身を含む): 30820608

約数和(自身を除く): 12583701

約数列:

[1, 3, 9, 13, 23, 27, 39, 69, 81, 117, 207, 243, 251, 299, 351, 621, 753, 897, 1053, 1863, 2259, 2691, 3159, 3263, 5589, 5773, 6777, 8073, 9789, 17319, 20331, 24219, 29367, 51957, 60993, 72657, 75049, 88101, 155871, 225147, 264303, 467613, 675441, 792909, 1402839, 2026323, 6078969, 18236907]

約数ペア:

[(1, 18236907), (3, 6078969), (9, 2026323), (13, 1402839), (23, 792909), (27, 675441), (39, 467613), (69, 264303), (81, 225147), (117, 155871), (207, 88101), (243, 75049), (251, 72657), (299, 60993), (351, 51957), (621, 29367), (753, 24219), (897, 20331), (1053, 17319), (1863, 9789), (2259, 8073), (2691, 6777), (3159, 5773), (3263, 5589)]