18942207

素因数分解:

$3^1\times {\mathrm{131}}^1\times {\mathrm{157}}^1\times {\mathrm{307}}^1$

素因数の和:598

約数の個数: 16

約数和(自身を含む): 25694592

約数和(自身を除く): 6752385

約数列:

[1, 3, 131, 157, 307, 393, 471, 921, 20567, 40217, 48199, 61701, 120651, 144597, 6314069, 18942207]

約数ペア:

[(1, 18942207), (3, 6314069), (131, 144597), (157, 120651), (307, 61701), (393, 48199), (471, 40217), (921, 20567)]