21781062

素因数分解:

$2^1\times 3^6\times {\mathrm{14939}}^1$

素因数の和:14959

約数の個数: 28

約数和(自身を含む): 48988260

約数和(自身を除く): 27207198

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 81, 162, 243, 486, 729, 1458, 14939, 29878, 44817, 89634, 134451, 268902, 403353, 806706, 1210059, 2420118, 3630177, 7260354, 10890531, 21781062]

約数ペア:

[(1, 21781062), (2, 10890531), (3, 7260354), (6, 3630177), (9, 2420118), (18, 1210059), (27, 806706), (54, 403353), (81, 268902), (162, 134451), (243, 89634), (486, 44817), (729, 29878), (1458, 14939)]