20547729

素因数分解:

$3^3\times {\mathrm{53}}^1\times {\mathrm{83}}^1\times {\mathrm{173}}^1$

素因数の和:318

約数の個数: 32

約数和(自身を含む): 31570560

約数和(自身を除く): 11022831

約数列:

[1, 3, 9, 27, 53, 83, 159, 173, 249, 477, 519, 747, 1431, 1557, 2241, 4399, 4671, 9169, 13197, 14359, 27507, 39591, 43077, 82521, 118773, 129231, 247563, 387693, 761027, 2283081, 6849243, 20547729]

約数ペア:

[(1, 20547729), (3, 6849243), (9, 2283081), (27, 761027), (53, 387693), (83, 247563), (159, 129231), (173, 118773), (249, 82521), (477, 43077), (519, 39591), (747, 27507), (1431, 14359), (1557, 13197), (2241, 9169), (4399, 4671)]