21222951

素因数分解:

$3^1\times {\mathrm{23}}^2\times {\mathrm{43}}^1\times {\mathrm{311}}^1$

素因数の和:403

約数の個数: 24

約数和(自身を含む): 30366336

約数和(自身を除く): 9143385

約数列:

[1, 3, 23, 43, 69, 129, 311, 529, 933, 989, 1587, 2967, 7153, 13373, 21459, 22747, 40119, 68241, 164519, 307579, 493557, 922737, 7074317, 21222951]

約数ペア:

[(1, 21222951), (3, 7074317), (23, 922737), (43, 493557), (69, 307579), (129, 164519), (311, 68241), (529, 40119), (933, 22747), (989, 21459), (1587, 13373), (2967, 7153)]