21349016

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{103}}^1\times {\mathrm{1993}}^1$

素因数の和:2115

約数の個数: 32

約数和(自身を含む): 43548960

約数和(自身を除く): 22199944

約数列:

[1, 2, 4, 8, 13, 26, 52, 103, 104, 206, 412, 824, 1339, 1993, 2678, 3986, 5356, 7972, 10712, 15944, 25909, 51818, 103636, 205279, 207272, 410558, 821116, 1642232, 2668627, 5337254, 10674508, 21349016]

約数ペア:

[(1, 21349016), (2, 10674508), (4, 5337254), (8, 2668627), (13, 1642232), (26, 821116), (52, 410558), (103, 207272), (104, 205279), (206, 103636), (412, 51818), (824, 25909), (1339, 15944), (1993, 10712), (2678, 7972), (3986, 5356)]