20801937

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{353}}^1\times {\mathrm{1511}}^1$

素因数の和:1880

約数の個数: 16

約数和(自身を含む): 29973888

約数和(自身を除く): 9171951

約数列:

[1, 3, 13, 39, 353, 1059, 1511, 4533, 4589, 13767, 19643, 58929, 533383, 1600149, 6933979, 20801937]

約数ペア:

[(1, 20801937), (3, 6933979), (13, 1600149), (39, 533383), (353, 58929), (1059, 19643), (1511, 13767), (4533, 4589)]