217420317

素因数分解:

$3^2\times {\mathrm{127}}^1\times {\mathrm{223}}^1\times {\mathrm{853}}^1$

素因数の和:1209

約数の個数: 24

約数和(自身を含む): 318316544

約数和(自身を除く): 100896227

約数列:

[1, 3, 9, 127, 223, 381, 669, 853, 1143, 2007, 2559, 7677, 28321, 84963, 108331, 190219, 254889, 324993, 570657, 974979, 1711971, 24157813, 72473439, 217420317]

約数ペア:

[(1, 217420317), (3, 72473439), (9, 24157813), (127, 1711971), (223, 974979), (381, 570657), (669, 324993), (853, 254889), (1143, 190219), (2007, 108331), (2559, 84963), (7677, 28321)]