18860974

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{661}}^1\times {\mathrm{1297}}^1$

素因数の和:1971

約数の個数: 16

約数和(自身を含む): 30933936

約数和(自身を除く): 12072962

約数列:

[1, 2, 11, 22, 661, 1297, 1322, 2594, 7271, 14267, 14542, 28534, 857317, 1714634, 9430487, 18860974]

約数ペア:

[(1, 18860974), (2, 9430487), (11, 1714634), (22, 857317), (661, 28534), (1297, 14542), (1322, 14267), (2594, 7271)]