21867615

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{6311}}^1$

素因数の和:6340

約数の個数: 48

約数和(自身を含む): 47264256

約数和(自身を除く): 25396641

約数列:

[1, 3, 5, 7, 9, 11, 15, 21, 33, 35, 45, 55, 63, 77, 99, 105, 165, 231, 315, 385, 495, 693, 1155, 3465, 6311, 18933, 31555, 44177, 56799, 69421, 94665, 132531, 208263, 220885, 283995, 347105, 397593, 485947, 624789, 662655, 1041315, 1457841, 1987965, 2429735, 3123945, 4373523, 7289205, 21867615]

約数ペア:

[(1, 21867615), (3, 7289205), (5, 4373523), (7, 3123945), (9, 2429735), (11, 1987965), (15, 1457841), (21, 1041315), (33, 662655), (35, 624789), (45, 485947), (55, 397593), (63, 347105), (77, 283995), (99, 220885), (105, 208263), (165, 132531), (231, 94665), (315, 69421), (385, 56799), (495, 44177), (693, 31555), (1155, 18933), (3465, 6311)]