12981345

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{66571}}^1$

素因数の和:66592

約数の個数: 16

約数和(自身を含む): 22368192

約数和(自身を除く): 9386847

約数列:

[1, 3, 5, 13, 15, 39, 65, 195, 66571, 199713, 332855, 865423, 998565, 2596269, 4327115, 12981345]

約数ペア:

[(1, 12981345), (3, 4327115), (5, 2596269), (13, 998565), (15, 865423), (39, 332855), (65, 199713), (195, 66571)]