12751921

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{8243}}^1$

素因数の和:8280

約数の個数: 16

約数和(自身を含む): 16619904

約数和(自身を除く): 3867983

約数列:

[1, 7, 13, 17, 91, 119, 221, 1547, 8243, 57701, 107159, 140131, 750113, 980917, 1821703, 12751921]

約数ペア:

[(1, 12751921), (7, 1821703), (13, 980917), (17, 750113), (91, 140131), (119, 107159), (221, 57701), (1547, 8243)]