209415171

素因数分解:

$3^1\times 7^2\times {\mathrm{103}}^1\times {\mathrm{13831}}^1$

素因数の和:13951

約数の個数: 24

約数和(自身を含む): 327984384

約数和(自身を除く): 118569213

約数列:

[1, 3, 7, 21, 49, 103, 147, 309, 721, 2163, 5047, 13831, 15141, 41493, 96817, 290451, 677719, 1424593, 2033157, 4273779, 9972151, 29916453, 69805057, 209415171]

約数ペア:

[(1, 209415171), (3, 69805057), (7, 29916453), (21, 9972151), (49, 4273779), (103, 2033157), (147, 1424593), (309, 677719), (721, 290451), (2163, 96817), (5047, 41493), (13831, 15141)]