18145886

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{167}}^1\times {\mathrm{449}}^1$

素因数の和:640

約数の個数: 24

約数和(自身を含む): 30164400

約数和(自身を除く): 12018514

約数列:

[1, 2, 11, 22, 121, 167, 242, 334, 449, 898, 1837, 3674, 4939, 9878, 20207, 40414, 54329, 74983, 108658, 149966, 824813, 1649626, 9072943, 18145886]

約数ペア:

[(1, 18145886), (2, 9072943), (11, 1649626), (22, 824813), (121, 149966), (167, 108658), (242, 74983), (334, 54329), (449, 40414), (898, 20207), (1837, 9878), (3674, 4939)]