20197071

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{101}}^1\times {\mathrm{1307}}^1$

素因数の和:1431

約数の個数: 24

約数和(自身を含む): 31219344

約数和(自身を除く): 11022273

約数列:

[1, 3, 9, 17, 51, 101, 153, 303, 909, 1307, 1717, 3921, 5151, 11763, 15453, 22219, 66657, 132007, 199971, 396021, 1188063, 2244119, 6732357, 20197071]

約数ペア:

[(1, 20197071), (3, 6732357), (9, 2244119), (17, 1188063), (51, 396021), (101, 199971), (153, 132007), (303, 66657), (909, 22219), (1307, 15453), (1717, 11763), (3921, 5151)]