20210817

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{14243}}^1$

素因数の和:14300

約数の個数: 16

約数和(自身を含む): 30083328

約数和(自身を除く): 9872511

約数列:

[1, 3, 11, 33, 43, 129, 473, 1419, 14243, 42729, 156673, 470019, 612449, 1837347, 6736939, 20210817]

約数ペア:

[(1, 20210817), (3, 6736939), (11, 1837347), (33, 612449), (43, 470019), (129, 156673), (473, 42729), (1419, 14243)]