21564823

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{7879}}^1$

素因数の和:7926

約数の個数: 16

約数和(自身を含む): 27233280

約数和(自身を除く): 5668457

約数列:

[1, 7, 17, 23, 119, 161, 391, 2737, 7879, 55153, 133943, 181217, 937601, 1268519, 3080689, 21564823]

約数ペア:

[(1, 21564823), (7, 3080689), (17, 1268519), (23, 937601), (119, 181217), (161, 133943), (391, 55153), (2737, 7879)]