21028533

素因数分解:

$3^1\times {\mathrm{97}}^1\times {\mathrm{127}}^1\times {\mathrm{569}}^1$

素因数の和:796

約数の個数: 16

約数和(自身を含む): 28600320

約数和(自身を除く): 7571787

約数列:

[1, 3, 97, 127, 291, 381, 569, 1707, 12319, 36957, 55193, 72263, 165579, 216789, 7009511, 21028533]

約数ペア:

[(1, 21028533), (3, 7009511), (97, 216789), (127, 165579), (291, 72263), (381, 55193), (569, 36957), (1707, 12319)]