21921867

素因数分解:

$3^3\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{2381}}^1$

素因数の和:2432

約数の個数: 32

約数和(自身を含む): 36587520

約数和(自身を除く): 14665653

約数列:

[1, 3, 9, 11, 27, 31, 33, 93, 99, 279, 297, 341, 837, 1023, 2381, 3069, 7143, 9207, 21429, 26191, 64287, 73811, 78573, 221433, 235719, 664299, 707157, 811921, 1992897, 2435763, 7307289, 21921867]

約数ペア:

[(1, 21921867), (3, 7307289), (9, 2435763), (11, 1992897), (27, 811921), (31, 707157), (33, 664299), (93, 235719), (99, 221433), (279, 78573), (297, 73811), (341, 64287), (837, 26191), (1023, 21429), (2381, 9207), (3069, 7143)]