21989943

素因数分解:

$3^2\times {\mathrm{31}}^1\times {\mathrm{269}}^1\times {\mathrm{293}}^1$

素因数の和:599

約数の個数: 24

約数和(自身を含む): 33022080

約数和(自身を除く): 11032137

約数列:

[1, 3, 9, 31, 93, 269, 279, 293, 807, 879, 2421, 2637, 8339, 9083, 25017, 27249, 75051, 78817, 81747, 236451, 709353, 2443327, 7329981, 21989943]

約数ペア:

[(1, 21989943), (3, 7329981), (9, 2443327), (31, 709353), (93, 236451), (269, 81747), (279, 78817), (293, 75051), (807, 27249), (879, 25017), (2421, 9083), (2637, 8339)]