21000742029

素因数分解:

$3^2\times {\mathrm{71}}^1\times {\mathrm{32865011}}^1$

素因数の和:32865088

約数の個数: 12

約数和(自身を含む): 30761651232

約数和(自身を除く): 9760909203

約数列:

[1, 3, 9, 71, 213, 639, 32865011, 98595033, 295785099, 2333415781, 7000247343, 21000742029]

約数ペア:

[(1, 21000742029), (3, 7000247343), (9, 2333415781), (71, 295785099), (213, 98595033), (639, 32865011)]