20512456905

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{83}}^1\times {\mathrm{867151}}^1$

素因数の和:867261

約数の個数: 32

約数和(自身を含む): 34963568640

約数和(自身を除く): 14451111735

約数列:

[1, 3, 5, 15, 19, 57, 83, 95, 249, 285, 415, 1245, 1577, 4731, 7885, 23655, 867151, 2601453, 4335755, 13007265, 16475869, 49427607, 71973533, 82379345, 215920599, 247138035, 359867665, 1079602995, 1367497127, 4102491381, 6837485635, 20512456905]

約数ペア:

[(1, 20512456905), (3, 6837485635), (5, 4102491381), (15, 1367497127), (19, 1079602995), (57, 359867665), (83, 247138035), (95, 215920599), (249, 82379345), (285, 71973533), (415, 49427607), (1245, 16475869), (1577, 13007265), (4731, 4335755), (7885, 2601453), (23655, 867151)]