20211609

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{197}}^1\times {\mathrm{3109}}^1$

素因数の和:3320

約数の個数: 16

約数和(自身を含む): 29557440

約数和(自身を除く): 9345831

約数列:

[1, 3, 11, 33, 197, 591, 2167, 3109, 6501, 9327, 34199, 102597, 612473, 1837419, 6737203, 20211609]

約数ペア:

[(1, 20211609), (3, 6737203), (11, 1837419), (33, 612473), (197, 102597), (591, 34199), (2167, 9327), (3109, 6501)]