28568267

素因数分解:

$7^1\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1$

素因数の和:124

約数の個数: 48

約数和(自身を含む): 39352320

約数和(自身を除く): 10784053

約数列:

[1, 7, 13, 19, 31, 41, 91, 133, 169, 217, 247, 287, 403, 533, 589, 779, 1183, 1271, 1729, 2821, 3211, 3731, 4123, 5239, 5453, 6929, 7657, 8897, 10127, 16523, 22477, 24149, 36673, 48503, 53599, 70889, 99541, 115661, 131651, 169043, 214799, 313937, 696787, 921557, 1503593, 2197559, 4081181, 28568267]

約数ペア:

[(1, 28568267), (7, 4081181), (13, 2197559), (19, 1503593), (31, 921557), (41, 696787), (91, 313937), (133, 214799), (169, 169043), (217, 131651), (247, 115661), (287, 99541), (403, 70889), (533, 53599), (589, 48503), (779, 36673), (1183, 24149), (1271, 22477), (1729, 16523), (2821, 10127), (3211, 8897), (3731, 7657), (4123, 6929), (5239, 5453)]