213739323

素因数分解:

$3^1\times 7^2\times {\mathrm{71}}^1\times {\mathrm{20479}}^1$

素因数の和:20567

約数の個数: 24

約数和(自身を含む): 336199680

約数和(自身を除く): 122460357

約数列:

[1, 3, 7, 21, 49, 71, 147, 213, 497, 1491, 3479, 10437, 20479, 61437, 143353, 430059, 1003471, 1454009, 3010413, 4362027, 10178063, 30534189, 71246441, 213739323]

約数ペア:

[(1, 213739323), (3, 71246441), (7, 30534189), (21, 10178063), (49, 4362027), (71, 3010413), (147, 1454009), (213, 1003471), (497, 430059), (1491, 143353), (3479, 61437), (10437, 20479)]