21476565

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{1009}}^1$

素因数の和:1074

約数の個数: 48

約数和(自身を含む): 41595840

約数和(自身を除く): 20119275

約数列:

[1, 3, 5, 9, 11, 15, 33, 43, 45, 55, 99, 129, 165, 215, 387, 473, 495, 645, 1009, 1419, 1935, 2365, 3027, 4257, 5045, 7095, 9081, 11099, 15135, 21285, 33297, 43387, 45405, 55495, 99891, 130161, 166485, 216935, 390483, 477257, 499455, 650805, 1431771, 1952415, 2386285, 4295313, 7158855, 21476565]

約数ペア:

[(1, 21476565), (3, 7158855), (5, 4295313), (9, 2386285), (11, 1952415), (15, 1431771), (33, 650805), (43, 499455), (45, 477257), (55, 390483), (99, 216935), (129, 166485), (165, 130161), (215, 99891), (387, 55495), (473, 45405), (495, 43387), (645, 33297), (1009, 21285), (1419, 15135), (1935, 11099), (2365, 9081), (3027, 7095), (4257, 5045)]