18210987

素因数分解:

$3^4\times {\mathrm{19}}^1\times {\mathrm{11833}}^1$

素因数の和:11864

約数の個数: 20

約数和(自身を含む): 28638280

約数和(自身を除く): 10427293

約数列:

[1, 3, 9, 19, 27, 57, 81, 171, 513, 1539, 11833, 35499, 106497, 224827, 319491, 674481, 958473, 2023443, 6070329, 18210987]

約数ペア:

[(1, 18210987), (3, 6070329), (9, 2023443), (19, 958473), (27, 674481), (57, 319491), (81, 224827), (171, 106497), (513, 35499), (1539, 11833)]