21220706

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{101}}^1\times {\mathrm{8081}}^1$

素因数の和:8197

約数の個数: 16

約数和(自身を含む): 34623288

約数和(自身を除く): 13402582

約数列:

[1, 2, 13, 26, 101, 202, 1313, 2626, 8081, 16162, 105053, 210106, 816181, 1632362, 10610353, 21220706]

約数ペア:

[(1, 21220706), (2, 10610353), (13, 1632362), (26, 816181), (101, 210106), (202, 105053), (1313, 16162), (2626, 8081)]