20091687

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{7907}}^1$

素因数の和:7939

約数の個数: 24

約数和(自身を含む): 33656448

約数和(自身を除く): 13564761

約数列:

[1, 3, 7, 11, 21, 33, 77, 121, 231, 363, 847, 2541, 7907, 23721, 55349, 86977, 166047, 260931, 608839, 956747, 1826517, 2870241, 6697229, 20091687]

約数ペア:

[(1, 20091687), (3, 6697229), (7, 2870241), (11, 1826517), (21, 956747), (33, 608839), (77, 260931), (121, 166047), (231, 86977), (363, 55349), (847, 23721), (2541, 7907)]