216864291

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{20947}}^1$

素因数の和:21003

約数の個数: 32

約数和(自身を含む): 361981440

約数和(自身を除く): 145117149

約数列:

[1, 3, 7, 17, 21, 29, 51, 87, 119, 203, 357, 493, 609, 1479, 3451, 10353, 20947, 62841, 146629, 356099, 439887, 607463, 1068297, 1822389, 2492693, 4252241, 7478079, 10326871, 12756723, 30980613, 72288097, 216864291]

約数ペア:

[(1, 216864291), (3, 72288097), (7, 30980613), (17, 12756723), (21, 10326871), (29, 7478079), (51, 4252241), (87, 2492693), (119, 1822389), (203, 1068297), (357, 607463), (493, 439887), (609, 356099), (1479, 146629), (3451, 62841), (10353, 20947)]