18940935

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{137}}^1\times {\mathrm{709}}^1$

素因数の和:867

約数の個数: 32

約数和(自身を含む): 32921280

約数和(自身を除く): 13980345

約数列:

[1, 3, 5, 13, 15, 39, 65, 137, 195, 411, 685, 709, 1781, 2055, 2127, 3545, 5343, 8905, 9217, 10635, 26715, 27651, 46085, 97133, 138255, 291399, 485665, 1262729, 1456995, 3788187, 6313645, 18940935]

約数ペア:

[(1, 18940935), (3, 6313645), (5, 3788187), (13, 1456995), (15, 1262729), (39, 485665), (65, 291399), (137, 138255), (195, 97133), (411, 46085), (685, 27651), (709, 26715), (1781, 10635), (2055, 9217), (2127, 8905), (3545, 5343)]