21298021275

素因数分解:

$3^1\times 5^2\times {\mathrm{23}}^1\times {\mathrm{12346679}}^1$

素因数の和:12346715

約数の個数: 24

約数和(自身を含む): 36743719680

約数和(自身を除く): 15445698405

約数列:

[1, 3, 5, 15, 23, 25, 69, 75, 115, 345, 575, 1725, 12346679, 37040037, 61733395, 185200185, 283973617, 308666975, 851920851, 926000925, 1419868085, 4259604255, 7099340425, 21298021275]

約数ペア:

[(1, 21298021275), (3, 7099340425), (5, 4259604255), (15, 1419868085), (23, 926000925), (25, 851920851), (69, 308666975), (75, 283973617), (115, 185200185), (345, 61733395), (575, 37040037), (1725, 12346679)]