28162071

素因数分解:

$3^2\times 7^1\times {\mathrm{47}}^1\times {\mathrm{9511}}^1$

素因数の和:9571

約数の個数: 24

約数和(自身を含む): 47483904

約数和(自身を除く): 19321833

約数列:

[1, 3, 7, 9, 21, 47, 63, 141, 329, 423, 987, 2961, 9511, 28533, 66577, 85599, 199731, 447017, 599193, 1341051, 3129119, 4023153, 9387357, 28162071]

約数ペア:

[(1, 28162071), (3, 9387357), (7, 4023153), (9, 3129119), (21, 1341051), (47, 599193), (63, 447017), (141, 199731), (329, 85599), (423, 66577), (987, 28533), (2961, 9511)]