18697329

素因数分解:

$3^2\times 7^1\times {\mathrm{463}}^1\times {\mathrm{641}}^1$

素因数の和:1117

約数の個数: 24

約数和(自身を含む): 30980352

約数和(自身を除く): 12283023

約数列:

[1, 3, 7, 9, 21, 63, 463, 641, 1389, 1923, 3241, 4167, 4487, 5769, 9723, 13461, 29169, 40383, 296783, 890349, 2077481, 2671047, 6232443, 18697329]

約数ペア:

[(1, 18697329), (3, 6232443), (7, 2671047), (9, 2077481), (21, 890349), (63, 296783), (463, 40383), (641, 29169), (1389, 13461), (1923, 9723), (3241, 5769), (4167, 4487)]