21000339369

素因数分解:

$3^4\times {\mathrm{13441}}^1\times {\mathrm{19289}}^1$

素因数の和:32742

約数の個数: 20

約数和(自身を含む): 31374837780

約数和(自身を除く): 10374498411

約数列:

[1, 3, 9, 27, 81, 13441, 19289, 40323, 57867, 120969, 173601, 362907, 520803, 1088721, 1562409, 259263449, 777790347, 2333371041, 7000113123, 21000339369]

約数ペア:

[(1, 21000339369), (3, 7000113123), (9, 2333371041), (27, 777790347), (81, 259263449), (13441, 1562409), (19289, 1088721), (40323, 520803), (57867, 362907), (120969, 173601)]