20161395081

素因数分解:

$3^2\times {\mathrm{71}}^1\times {\mathrm{89}}^1\times {\mathrm{241}}^1\times {\mathrm{1471}}^1$

素因数の和:1878

約数の個数: 48

約数和(自身を含む): 30008309760

約数和(自身を除く): 9846914679

約数列:

[1, 3, 9, 71, 89, 213, 241, 267, 639, 723, 801, 1471, 2169, 4413, 6319, 13239, 17111, 18957, 21449, 51333, 56871, 64347, 104441, 130919, 153999, 193041, 313323, 354511, 392757, 939969, 1063533, 1178271, 1522879, 3190599, 4568637, 9295249, 13705911, 25170281, 27885747, 31551479, 75510843, 83657241, 94654437, 226532529, 283963311, 2240155009, 6720465027, 20161395081]

約数ペア:

[(1, 20161395081), (3, 6720465027), (9, 2240155009), (71, 283963311), (89, 226532529), (213, 94654437), (241, 83657241), (267, 75510843), (639, 31551479), (723, 27885747), (801, 25170281), (1471, 13705911), (2169, 9295249), (4413, 4568637), (6319, 3190599), (13239, 1522879), (17111, 1178271), (18957, 1063533), (21449, 939969), (51333, 392757), (56871, 354511), (64347, 313323), (104441, 193041), (130919, 153999)]