21091499

素因数分解:

${\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{1867}}^1$

素因数の和:1970

約数の個数: 16

約数和(自身を含む): 25105920

約数和(自身を除く): 4014421

約数列:

[1, 11, 13, 79, 143, 869, 1027, 1867, 11297, 20537, 24271, 147493, 266981, 1622423, 1917409, 21091499]

約数ペア:

[(1, 21091499), (11, 1917409), (13, 1622423), (79, 266981), (143, 147493), (869, 24271), (1027, 20537), (1867, 11297)]