18971213638

素因数分解:

$2^1\times {\mathrm{13}}^3\times {\mathrm{521}}^1\times {\mathrm{8287}}^1$

素因数の和:8849

約数の個数: 32

約数和(自身を含む): 30890039040

約数和(自身を除く): 11918825402

約数列:

[1, 2, 13, 26, 169, 338, 521, 1042, 2197, 4394, 6773, 8287, 13546, 16574, 88049, 107731, 176098, 215462, 1144637, 1400503, 2289274, 2801006, 4317527, 8635054, 18206539, 36413078, 56127851, 112255702, 729662063, 1459324126, 9485606819, 18971213638]

約数ペア:

[(1, 18971213638), (2, 9485606819), (13, 1459324126), (26, 729662063), (169, 112255702), (338, 56127851), (521, 36413078), (1042, 18206539), (2197, 8635054), (4394, 4317527), (6773, 2801006), (8287, 2289274), (13546, 1400503), (16574, 1144637), (88049, 215462), (107731, 176098)]