19993749087

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{977}}^1\times {\mathrm{12203}}^1$

素因数の和:13239

約数の個数: 32

約数和(自身を含む): 29409101568

約数和(自身を除く): 9415352481

約数列:

[1, 3, 13, 39, 43, 129, 559, 977, 1677, 2931, 12203, 12701, 36609, 38103, 42011, 126033, 158639, 475917, 524729, 546143, 1574187, 1638429, 6821477, 11922331, 20464431, 35766993, 154990303, 464970909, 512660233, 1537980699, 6664583029, 19993749087]

約数ペア:

[(1, 19993749087), (3, 6664583029), (13, 1537980699), (39, 512660233), (43, 464970909), (129, 154990303), (559, 35766993), (977, 20464431), (1677, 11922331), (2931, 6821477), (12203, 1638429), (12701, 1574187), (36609, 546143), (38103, 524729), (42011, 475917), (126033, 158639)]