21849255

素因数分解:

$3^2\times 5^1\times {\mathrm{487}}^1\times {\mathrm{997}}^1$

素因数の和:1495

約数の個数: 24

約数和(自身を含む): 37987872

約数和(自身を除く): 16138617

約数列:

[1, 3, 5, 9, 15, 45, 487, 997, 1461, 2435, 2991, 4383, 4985, 7305, 8973, 14955, 21915, 44865, 485539, 1456617, 2427695, 4369851, 7283085, 21849255]

約数ペア:

[(1, 21849255), (3, 7283085), (5, 4369851), (9, 2427695), (15, 1456617), (45, 485539), (487, 44865), (997, 21915), (1461, 14955), (2435, 8973), (2991, 7305), (4383, 4985)]