19981856921

素因数分解:

${\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{1232611}}^1$

素因数の和:1232696

約数の個数: 16

約数和(自身を含む): 22778669760

約数和(自身を除く): 2796812839

約数列:

[1, 13, 29, 43, 377, 559, 1247, 16211, 1232611, 16023943, 35745719, 53002273, 464694347, 689029549, 1537065917, 19981856921]

約数ペア:

[(1, 19981856921), (13, 1537065917), (29, 689029549), (43, 464694347), (377, 53002273), (559, 35745719), (1247, 16023943), (16211, 1232611)]