19840139

素因数分解:

${\mathrm{11}}^1\times {\mathrm{17}}^2\times {\mathrm{79}}^2$

素因数の和:203

約数の個数: 18

約数和(自身を含む): 23286564

約数和(自身を除く): 3446425

約数列:

[1, 11, 17, 79, 187, 289, 869, 1343, 3179, 6241, 14773, 22831, 68651, 106097, 251141, 1167067, 1803649, 19840139]

約数ペア:

[(1, 19840139), (11, 1803649), (17, 1167067), (79, 251141), (187, 106097), (289, 68651), (869, 22831), (1343, 14773), (3179, 6241)]