28821933

素因数分解:

$3^3\times 7^1\times {\mathrm{73}}^1\times {\mathrm{2089}}^1$

素因数の和:2178

約数の個数: 32

約数和(自身を含む): 49491200

約数和(自身を除く): 20669267

約数列:

[1, 3, 7, 9, 21, 27, 63, 73, 189, 219, 511, 657, 1533, 1971, 2089, 4599, 6267, 13797, 14623, 18801, 43869, 56403, 131607, 152497, 394821, 457491, 1067479, 1372473, 3202437, 4117419, 9607311, 28821933]

約数ペア:

[(1, 28821933), (3, 9607311), (7, 4117419), (9, 3202437), (21, 1372473), (27, 1067479), (63, 457491), (73, 394821), (189, 152497), (219, 131607), (511, 56403), (657, 43869), (1533, 18801), (1971, 14623), (2089, 13797), (4599, 6267)]