18811208

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{191}}^1\times {\mathrm{947}}^1$

素因数の和:1157

約数の個数: 32

約数和(自身を含む): 38223360

約数和(自身を除く): 19412152

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 191, 382, 764, 947, 1528, 1894, 2483, 3788, 4966, 7576, 9932, 12311, 19864, 24622, 49244, 98488, 180877, 361754, 723508, 1447016, 2351401, 4702802, 9405604, 18811208]

約数ペア:

[(1, 18811208), (2, 9405604), (4, 4702802), (8, 2351401), (13, 1447016), (26, 723508), (52, 361754), (104, 180877), (191, 98488), (382, 49244), (764, 24622), (947, 19864), (1528, 12311), (1894, 9932), (2483, 7576), (3788, 4966)]