20317689

素因数分解:

$3^3\times 7^1\times {\mathrm{193}}^1\times {\mathrm{557}}^1$

素因数の和:766

約数の個数: 32

約数和(自身を含む): 34640640

約数和(自身を除く): 14322951

約数列:

[1, 3, 7, 9, 21, 27, 63, 189, 193, 557, 579, 1351, 1671, 1737, 3899, 4053, 5013, 5211, 11697, 12159, 15039, 35091, 36477, 105273, 107501, 322503, 752507, 967509, 2257521, 2902527, 6772563, 20317689]

約数ペア:

[(1, 20317689), (3, 6772563), (7, 2902527), (9, 2257521), (21, 967509), (27, 752507), (63, 322503), (189, 107501), (193, 105273), (557, 36477), (579, 35091), (1351, 15039), (1671, 12159), (1737, 11697), (3899, 5211), (4053, 5013)]