215580211

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{71}}^1\times {\mathrm{839}}^1$

素因数の和:975

約数の個数: 32

約数和(自身を含む): 278691840

約数和(自身を除く): 63111629

約数列:

[1, 7, 11, 47, 71, 77, 329, 497, 517, 781, 839, 3337, 3619, 5467, 5873, 9229, 23359, 36707, 39433, 59569, 64603, 256949, 276031, 416983, 433763, 655259, 2799743, 3036341, 4586813, 19598201, 30797173, 215580211]

約数ペア:

[(1, 215580211), (7, 30797173), (11, 19598201), (47, 4586813), (71, 3036341), (77, 2799743), (329, 655259), (497, 433763), (517, 416983), (781, 276031), (839, 256949), (3337, 64603), (3619, 59569), (5467, 39433), (5873, 36707), (9229, 23359)]