21940371

素因数分解:

$3^2\times {\mathrm{37}}^1\times {\mathrm{41}}^1\times {\mathrm{1607}}^1$

素因数の和:1691

約数の個数: 24

約数和(自身を含む): 33362784

約数和(自身を除く): 11422413

約数列:

[1, 3, 9, 37, 41, 111, 123, 333, 369, 1517, 1607, 4551, 4821, 13653, 14463, 59459, 65887, 178377, 197661, 535131, 592983, 2437819, 7313457, 21940371]

約数ペア:

[(1, 21940371), (3, 7313457), (9, 2437819), (37, 592983), (41, 535131), (111, 197661), (123, 178377), (333, 65887), (369, 59459), (1517, 14463), (1607, 13653), (4551, 4821)]