18493132

素因数分解:

$2^2\times 7^1\times {\mathrm{41}}^1\times {\mathrm{89}}^1\times {\mathrm{181}}^1$

素因数の和:322

約数の個数: 48

約数和(自身を含む): 38525760

約数和(自身を除く): 20032628

約数列:

[1, 2, 4, 7, 14, 28, 41, 82, 89, 164, 178, 181, 287, 356, 362, 574, 623, 724, 1148, 1246, 1267, 2492, 2534, 3649, 5068, 7298, 7421, 14596, 14842, 16109, 25543, 29684, 32218, 51086, 51947, 64436, 102172, 103894, 112763, 207788, 225526, 451052, 660469, 1320938, 2641876, 4623283, 9246566, 18493132]

約数ペア:

[(1, 18493132), (2, 9246566), (4, 4623283), (7, 2641876), (14, 1320938), (28, 660469), (41, 451052), (82, 225526), (89, 207788), (164, 112763), (178, 103894), (181, 102172), (287, 64436), (356, 51947), (362, 51086), (574, 32218), (623, 29684), (724, 25543), (1148, 16109), (1246, 14842), (1267, 14596), (2492, 7421), (2534, 7298), (3649, 5068)]