21254739

素因数分解:

$3^1\times {\mathrm{11}}^3\times {\mathrm{5323}}^1$

素因数の和:5359

約数の個数: 16

約数和(自身を含む): 31177344

約数和(自身を除く): 9922605

約数列:

[1, 3, 11, 33, 121, 363, 1331, 3993, 5323, 15969, 58553, 175659, 644083, 1932249, 7084913, 21254739]

約数ペア:

[(1, 21254739), (3, 7084913), (11, 1932249), (33, 644083), (121, 175659), (363, 58553), (1331, 15969), (3993, 5323)]