28706715

素因数分解:

$3^2\times 5^1\times {\mathrm{241}}^1\times {\mathrm{2647}}^1$

素因数の和:2899

約数の個数: 24

約数和(自身を含む): 49983648

約数和(自身を除く): 21276933

約数列:

[1, 3, 5, 9, 15, 45, 241, 723, 1205, 2169, 2647, 3615, 7941, 10845, 13235, 23823, 39705, 119115, 637927, 1913781, 3189635, 5741343, 9568905, 28706715]

約数ペア:

[(1, 28706715), (3, 9568905), (5, 5741343), (9, 3189635), (15, 1913781), (45, 637927), (241, 119115), (723, 39705), (1205, 23823), (2169, 13235), (2647, 10845), (3615, 7941)]