20660938017

素因数分解:

$3^1\times {\mathrm{71}}^1\times {\mathrm{97}}^1\times {\mathrm{757}}^1\times {\mathrm{1321}}^1$

素因数の和:2249

約数の個数: 32

約数和(自身を含む): 28282593024

約数和(自身を除く): 7621655007

約数列:

[1, 3, 71, 97, 213, 291, 757, 1321, 2271, 3963, 6887, 20661, 53747, 73429, 93791, 128137, 161241, 220287, 281373, 384411, 999997, 2999991, 5213459, 9097727, 15640377, 27293181, 70999787, 96999709, 212999361, 290999127, 6886979339, 20660938017]

約数ペア:

[(1, 20660938017), (3, 6886979339), (71, 290999127), (97, 212999361), (213, 96999709), (291, 70999787), (757, 27293181), (1321, 15640377), (2271, 9097727), (3963, 5213459), (6887, 2999991), (20661, 999997), (53747, 384411), (73429, 281373), (93791, 220287), (128137, 161241)]