19664115

素因数分解:

$3^1\times 5^1\times {\mathrm{43}}^2\times {\mathrm{709}}^1$

素因数の和:803

約数の個数: 24

約数和(自身を含む): 32256720

約数和(自身を除く): 12592605

約数列:

[1, 3, 5, 15, 43, 129, 215, 645, 709, 1849, 2127, 3545, 5547, 9245, 10635, 27735, 30487, 91461, 152435, 457305, 1310941, 3932823, 6554705, 19664115]

約数ペア:

[(1, 19664115), (3, 6554705), (5, 3932823), (15, 1310941), (43, 457305), (129, 152435), (215, 91461), (645, 30487), (709, 27735), (1849, 10635), (2127, 9245), (3545, 5547)]