28595889

素因数分解:

$3^3\times 7^1\times {\mathrm{71}}^1\times {\mathrm{2131}}^1$

素因数の和:2218

約数の個数: 32

約数和(自身を含む): 49121280

約数和(自身を除く): 20525391

約数列:

[1, 3, 7, 9, 21, 27, 63, 71, 189, 213, 497, 639, 1491, 1917, 2131, 4473, 6393, 13419, 14917, 19179, 44751, 57537, 134253, 151301, 402759, 453903, 1059107, 1361709, 3177321, 4085127, 9531963, 28595889]

約数ペア:

[(1, 28595889), (3, 9531963), (7, 4085127), (9, 3177321), (21, 1361709), (27, 1059107), (63, 453903), (71, 402759), (189, 151301), (213, 134253), (497, 57537), (639, 44751), (1491, 19179), (1917, 14917), (2131, 13419), (4473, 6393)]