2009667639

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{233}}^1\times {\mathrm{21617}}^1$

素因数の和:21879

約数の個数: 32

約数和(自身を含む): 3237511680

約数和(自身を除く): 1227844041

約数列:

[1, 3, 7, 19, 21, 57, 133, 233, 399, 699, 1631, 4427, 4893, 13281, 21617, 30989, 64851, 92967, 151319, 410723, 453957, 1232169, 2875061, 5036761, 8625183, 15110283, 35257327, 95698459, 105771981, 287095377, 669889213, 2009667639]

約数ペア:

[(1, 2009667639), (3, 669889213), (7, 287095377), (19, 105771981), (21, 95698459), (57, 35257327), (133, 15110283), (233, 8625183), (399, 5036761), (699, 2875061), (1631, 1232169), (4427, 453957), (4893, 410723), (13281, 151319), (21617, 92967), (30989, 64851)]