1640394891

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{149521}}^1$

素因数の和:149603

約数の個数: 24

約数和(自身を含む): 2519146656

約数和(自身を除く): 878751765

約数列:

[1, 3, 9, 23, 53, 69, 159, 207, 477, 1219, 3657, 10971, 149521, 448563, 1345689, 3438983, 7924613, 10316949, 23773839, 30950847, 71321517, 182266099, 546798297, 1640394891]

約数ペア:

[(1, 1640394891), (3, 546798297), (9, 182266099), (23, 71321517), (53, 30950847), (69, 23773839), (159, 10316949), (207, 7924613), (477, 3438983), (1219, 1345689), (3657, 448563), (10971, 149521)]