25640937

素因数分解:

$3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{691}}^1$

素因数の和:754

約数の個数: 48

約数和(自身を含む): 46059520

約数和(自身を除く): 20418583

約数列:

[1, 3, 7, 9, 19, 21, 31, 57, 63, 93, 133, 171, 217, 279, 399, 589, 651, 691, 1197, 1767, 1953, 2073, 4123, 4837, 5301, 6219, 12369, 13129, 14511, 21421, 37107, 39387, 43533, 64263, 91903, 118161, 149947, 192789, 275709, 406999, 449841, 827127, 1220997, 1349523, 2848993, 3662991, 8546979, 25640937]

約数ペア:

[(1, 25640937), (3, 8546979), (7, 3662991), (9, 2848993), (19, 1349523), (21, 1220997), (31, 827127), (57, 449841), (63, 406999), (93, 275709), (133, 192789), (171, 149947), (217, 118161), (279, 91903), (399, 64263), (589, 43533), (651, 39387), (691, 37107), (1197, 21421), (1767, 14511), (1953, 13129), (2073, 12369), (4123, 6219), (4837, 5301)]