648972009

素因数分解:

$3^2\times 7^1\times {\mathrm{313}}^1\times {\mathrm{32911}}^1$

素因数の和:33237

約数の個数: 24

約数和(自身を含む): 1074774272

約数和(自身を除く): 425802263

約数列:

[1, 3, 7, 9, 21, 63, 313, 939, 2191, 2817, 6573, 19719, 32911, 98733, 230377, 296199, 691131, 2073393, 10301143, 30903429, 72108001, 92710287, 216324003, 648972009]

約数ペア:

[(1, 648972009), (3, 216324003), (7, 92710287), (9, 72108001), (21, 30903429), (63, 10301143), (313, 2073393), (939, 691131), (2191, 296199), (2817, 230377), (6573, 98733), (19719, 32911)]