20028489

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{151}}^1\times {\mathrm{179}}^1$

素因数の和:365

約数の個数: 32

約数和(自身を含む): 30643200

約数和(自身を除く): 10614711

約数列:

[1, 3, 13, 19, 39, 57, 151, 179, 247, 453, 537, 741, 1963, 2327, 2869, 3401, 5889, 6981, 8607, 10203, 27029, 37297, 44213, 81087, 111891, 132639, 351377, 513551, 1054131, 1540653, 6676163, 20028489]

約数ペア:

[(1, 20028489), (3, 6676163), (13, 1540653), (19, 1054131), (39, 513551), (57, 351377), (151, 132639), (179, 111891), (247, 81087), (453, 44213), (537, 37297), (741, 27029), (1963, 10203), (2327, 8607), (2869, 6981), (3401, 5889)]