19540683

素因数分解:

$3^4\times {\mathrm{19}}^1\times {\mathrm{12697}}^1$

素因数の和:12728

約数の個数: 20

約数和(自身を含む): 30729160

約数和(自身を除く): 11188477

約数列:

[1, 3, 9, 19, 27, 57, 81, 171, 513, 1539, 12697, 38091, 114273, 241243, 342819, 723729, 1028457, 2171187, 6513561, 19540683]

約数ペア:

[(1, 19540683), (3, 6513561), (9, 2171187), (19, 1028457), (27, 723729), (57, 342819), (81, 241243), (171, 114273), (513, 38091), (1539, 12697)]