25247257

素因数分解:

$7^1\times {\mathrm{19}}^2\times {\mathrm{97}}^1\times {\mathrm{103}}^1$

素因数の和:245

約数の個数: 24

約数和(自身を含む): 31065216

約数和(自身を除く): 5817959

約数列:

[1, 7, 19, 97, 103, 133, 361, 679, 721, 1843, 1957, 2527, 9991, 12901, 13699, 35017, 37183, 69937, 189829, 245119, 260281, 1328803, 3606751, 25247257]

約数ペア:

[(1, 25247257), (7, 3606751), (19, 1328803), (97, 260281), (103, 245119), (133, 189829), (361, 69937), (679, 37183), (721, 35017), (1843, 13699), (1957, 12901), (2527, 9991)]