28808997

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{103}}^1\times {\mathrm{701}}^1$

素因数の和:833

約数の個数: 32

約数和(自身を含む): 46725120

約数和(自身を除く): 17916123

約数列:

[1, 3, 7, 19, 21, 57, 103, 133, 309, 399, 701, 721, 1957, 2103, 2163, 4907, 5871, 13319, 13699, 14721, 39957, 41097, 72203, 93233, 216609, 279699, 505421, 1371857, 1516263, 4115571, 9602999, 28808997]

約数ペア:

[(1, 28808997), (3, 9602999), (7, 4115571), (19, 1516263), (21, 1371857), (57, 505421), (103, 279699), (133, 216609), (309, 93233), (399, 72203), (701, 41097), (721, 39957), (1957, 14721), (2103, 13699), (2163, 13319), (4907, 5871)]