21321807

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{101}}^1\times {\mathrm{5413}}^1$

素因数の和:5530

約数の個数: 16

約数和(自身を含む): 30924768

約数和(自身を除く): 9602961

約数列:

[1, 3, 13, 39, 101, 303, 1313, 3939, 5413, 16239, 70369, 211107, 546713, 1640139, 7107269, 21321807]

約数ペア:

[(1, 21321807), (3, 7107269), (13, 1640139), (39, 546713), (101, 211107), (303, 70369), (1313, 16239), (3939, 5413)]