21493353

素因数分解:

$3^1\times 7^1\times {\mathrm{127}}^1\times {\mathrm{8059}}^1$

素因数の和:8196

約数の個数: 16

約数和(自身を含む): 33013760

約数和(自身を除く): 11520407

約数列:

[1, 3, 7, 21, 127, 381, 889, 2667, 8059, 24177, 56413, 169239, 1023493, 3070479, 7164451, 21493353]

約数ペア:

[(1, 21493353), (3, 7164451), (7, 3070479), (21, 1023493), (127, 169239), (381, 56413), (889, 24177), (2667, 8059)]