28340389

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{47}}^1\times {\mathrm{191}}^1$

素因数の和:297

約数の個数: 32

約数和(自身を含む): 37158912

約数和(自身を除く): 8818523

約数列:

[1, 7, 11, 41, 47, 77, 191, 287, 329, 451, 517, 1337, 1927, 2101, 3157, 3619, 7831, 8977, 13489, 14707, 21197, 54817, 62839, 86141, 98747, 148379, 368057, 602987, 691229, 2576399, 4048627, 28340389]

約数ペア:

[(1, 28340389), (7, 4048627), (11, 2576399), (41, 691229), (47, 602987), (77, 368057), (191, 148379), (287, 98747), (329, 86141), (451, 62839), (517, 54817), (1337, 21197), (1927, 14707), (2101, 13489), (3157, 8977), (3619, 7831)]