28747953

素因数分解:

$3^4\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{1187}}^1$

素因数の和:1235

約数の個数: 40

約数和(自身を含む): 48299328

約数和(自身を除く): 19551375

約数列:

[1, 3, 9, 13, 23, 27, 39, 69, 81, 117, 207, 299, 351, 621, 897, 1053, 1187, 1863, 2691, 3561, 8073, 10683, 15431, 24219, 27301, 32049, 46293, 81903, 96147, 138879, 245709, 354913, 416637, 737127, 1064739, 1249911, 2211381, 3194217, 9582651, 28747953]

約数ペア:

[(1, 28747953), (3, 9582651), (9, 3194217), (13, 2211381), (23, 1249911), (27, 1064739), (39, 737127), (69, 416637), (81, 354913), (117, 245709), (207, 138879), (299, 96147), (351, 81903), (621, 46293), (897, 32049), (1053, 27301), (1187, 24219), (1863, 15431), (2691, 10683), (3561, 8073)]