25287857

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{71}}^1\times {\mathrm{73}}^1$

素因数の和:209

約数の個数: 32

約数和(自身を含む): 32223744

約数和(自身を除く): 6935887

約数列:

[1, 7, 17, 41, 71, 73, 119, 287, 497, 511, 697, 1207, 1241, 2911, 2993, 4879, 5183, 8449, 8687, 20377, 20951, 36281, 49487, 50881, 88111, 212503, 346409, 356167, 616777, 1487521, 3612551, 25287857]

約数ペア:

[(1, 25287857), (7, 3612551), (17, 1487521), (41, 616777), (71, 356167), (73, 346409), (119, 212503), (287, 88111), (497, 50881), (511, 49487), (697, 36281), (1207, 20951), (1241, 20377), (2911, 8687), (2993, 8449), (4879, 5183)]