20696715

素因数分解:

$3^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{3931}}^1$

素因数の和:3961

約数の個数: 40

約数和(自身を含む): 39964848

約数和(自身を除く): 19268133

約数列:

[1, 3, 5, 9, 13, 15, 27, 39, 45, 65, 81, 117, 135, 195, 351, 405, 585, 1053, 1755, 3931, 5265, 11793, 19655, 35379, 51103, 58965, 106137, 153309, 176895, 255515, 318411, 459927, 530685, 766545, 1379781, 1592055, 2299635, 4139343, 6898905, 20696715]

約数ペア:

[(1, 20696715), (3, 6898905), (5, 4139343), (9, 2299635), (13, 1592055), (15, 1379781), (27, 766545), (39, 530685), (45, 459927), (65, 318411), (81, 255515), (117, 176895), (135, 153309), (195, 106137), (351, 58965), (405, 51103), (585, 35379), (1053, 19655), (1755, 11793), (3931, 5265)]