215857635

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{47809}}^1$

素因数の和:47867

約数の個数: 32

約数和(自身を含む): 403898880

約数和(自身を除く): 188041245

約数列:

[1, 3, 5, 7, 15, 21, 35, 43, 105, 129, 215, 301, 645, 903, 1505, 4515, 47809, 143427, 239045, 334663, 717135, 1003989, 1673315, 2055787, 5019945, 6167361, 10278935, 14390509, 30836805, 43171527, 71952545, 215857635]

約数ペア:

[(1, 215857635), (3, 71952545), (5, 43171527), (7, 30836805), (15, 14390509), (21, 10278935), (35, 6167361), (43, 5019945), (105, 2055787), (129, 1673315), (215, 1003989), (301, 717135), (645, 334663), (903, 239045), (1505, 143427), (4515, 47809)]