18697563

素因数分解:

$3^2\times {\mathrm{73}}^1\times {\mathrm{149}}^1\times {\mathrm{191}}^1$

素因数の和:419

約数の個数: 24

約数和(自身を含む): 27705600

約数和(自身を除く): 9008037

約数列:

[1, 3, 9, 73, 149, 191, 219, 447, 573, 657, 1341, 1719, 10877, 13943, 28459, 32631, 41829, 85377, 97893, 125487, 256131, 2077507, 6232521, 18697563]

約数ペア:

[(1, 18697563), (3, 6232521), (9, 2077507), (73, 256131), (149, 125487), (191, 97893), (219, 85377), (447, 41829), (573, 32631), (657, 28459), (1341, 13943), (1719, 10877)]