21080774

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{73709}}^1$

素因数の和:73735

約数の個数: 16

約数和(自身を含む): 37149840

約数和(自身を除く): 16069066

約数列:

[1, 2, 11, 13, 22, 26, 143, 286, 73709, 147418, 810799, 958217, 1621598, 1916434, 10540387, 21080774]

約数ペア:

[(1, 21080774), (2, 10540387), (11, 1916434), (13, 1621598), (22, 958217), (26, 810799), (143, 147418), (286, 73709)]