18728463

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{20879}}^1$

素因数の和:20918

約数の個数: 16

約数和(自身を含む): 28062720

約数和(自身を除く): 9334257

約数列:

[1, 3, 13, 23, 39, 69, 299, 897, 20879, 62637, 271427, 480217, 814281, 1440651, 6242821, 18728463]

約数ペア:

[(1, 18728463), (3, 6242821), (13, 1440651), (23, 814281), (39, 480217), (69, 271427), (299, 62637), (897, 20879)]