20307573

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{509}}^1$

素因数の和:570

約数の個数: 48

約数和(自身を含む): 35642880

約数和(自身を除く): 15335307

約数列:

[1, 3, 9, 11, 13, 31, 33, 39, 93, 99, 117, 143, 279, 341, 403, 429, 509, 1023, 1209, 1287, 1527, 3069, 3627, 4433, 4581, 5599, 6617, 13299, 15779, 16797, 19851, 39897, 47337, 50391, 59553, 72787, 142011, 173569, 205127, 218361, 520707, 615381, 655083, 1562121, 1846143, 2256397, 6769191, 20307573]

約数ペア:

[(1, 20307573), (3, 6769191), (9, 2256397), (11, 1846143), (13, 1562121), (31, 655083), (33, 615381), (39, 520707), (93, 218361), (99, 205127), (117, 173569), (143, 142011), (279, 72787), (341, 59553), (403, 50391), (429, 47337), (509, 39897), (1023, 19851), (1209, 16797), (1287, 15779), (1527, 13299), (3069, 6617), (3627, 5599), (4433, 4581)]