21907339

素因数分解:

${\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{1303}}^1$

素因数の和:1386

約数の個数: 16

約数和(自身を含む): 24786432

約数和(自身を除く): 2879093

約数列:

[1, 17, 23, 43, 391, 731, 989, 1303, 16813, 22151, 29969, 56029, 509473, 952493, 1288667, 21907339]

約数ペア:

[(1, 21907339), (17, 1288667), (23, 952493), (43, 509473), (391, 56029), (731, 29969), (989, 22151), (1303, 16813)]