20578962831

素因数分解:

$3^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{751}}^1\times {\mathrm{27763}}^1$

素因数の和:28571

約数の個数: 32

約数和(自身を含む): 32069419008

約数和(自身を除く): 11490456177

約数列:

[1, 3, 7, 21, 47, 141, 329, 751, 987, 2253, 5257, 15771, 27763, 35297, 83289, 105891, 194341, 247079, 583023, 741237, 1304861, 3914583, 9134027, 20850013, 27402081, 62550039, 145950091, 437850273, 979950611, 2939851833, 6859654277, 20578962831]

約数ペア:

[(1, 20578962831), (3, 6859654277), (7, 2939851833), (21, 979950611), (47, 437850273), (141, 145950091), (329, 62550039), (751, 27402081), (987, 20850013), (2253, 9134027), (5257, 3914583), (15771, 1304861), (27763, 741237), (35297, 583023), (83289, 247079), (105891, 194341)]