78720081

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{140321}}^1$

素因数の和:140352

約数の個数: 16

約数和(自身を含む): 121238208

約数和(自身を除く): 42518127

約数列:

[1, 3, 11, 17, 33, 51, 187, 561, 140321, 420963, 1543531, 2385457, 4630593, 7156371, 26240027, 78720081]

約数ペア:

[(1, 78720081), (3, 26240027), (11, 7156371), (17, 4630593), (33, 2385457), (51, 1543531), (187, 420963), (561, 140321)]