19936305

素因数分解:

$3^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{10303}}^1$

素因数の和:10357

約数の個数: 24

約数和(自身を含む): 35363328

約数和(自身を除く): 15427023

約数列:

[1, 3, 5, 9, 15, 43, 45, 129, 215, 387, 645, 1935, 10303, 30909, 51515, 92727, 154545, 443029, 463635, 1329087, 2215145, 3987261, 6645435, 19936305]

約数ペア:

[(1, 19936305), (3, 6645435), (5, 3987261), (9, 2215145), (15, 1329087), (43, 463635), (45, 443029), (129, 154545), (215, 92727), (387, 51515), (645, 30909), (1935, 10303)]