28320513

素因数分解:

$3^1\times {\mathrm{13}}^2\times {\mathrm{83}}^1\times {\mathrm{673}}^1$

素因数の和:785

約数の個数: 24

約数和(自身を含む): 41442912

約数和(自身を除く): 13122399

約数列:

[1, 3, 13, 39, 83, 169, 249, 507, 673, 1079, 2019, 3237, 8749, 14027, 26247, 42081, 55859, 113737, 167577, 341211, 726167, 2178501, 9440171, 28320513]

約数ペア:

[(1, 28320513), (3, 9440171), (13, 2178501), (39, 726167), (83, 341211), (169, 167577), (249, 113737), (507, 55859), (673, 42081), (1079, 26247), (2019, 14027), (3237, 8749)]