21924747

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{73}}^1\times {\mathrm{151}}^1$

素因数の和:260

約数の個数: 48

約数和(自身を含む): 36848448

約数和(自身を除く): 14923701

約数列:

[1, 3, 9, 13, 17, 39, 51, 73, 117, 151, 153, 219, 221, 453, 657, 663, 949, 1241, 1359, 1963, 1989, 2567, 2847, 3723, 5889, 7701, 8541, 11023, 11169, 16133, 17667, 23103, 33069, 33371, 48399, 99207, 100113, 143299, 145197, 187391, 300339, 429897, 562173, 1289691, 1686519, 2436083, 7308249, 21924747]

約数ペア:

[(1, 21924747), (3, 7308249), (9, 2436083), (13, 1686519), (17, 1289691), (39, 562173), (51, 429897), (73, 300339), (117, 187391), (151, 145197), (153, 143299), (219, 100113), (221, 99207), (453, 48399), (657, 33371), (663, 33069), (949, 23103), (1241, 17667), (1359, 16133), (1963, 11169), (1989, 11023), (2567, 8541), (2847, 7701), (3723, 5889)]