18460071

素因数分解:

$3^2\times 7^1\times {\mathrm{71}}^1\times {\mathrm{4127}}^1$

素因数の和:4211

約数の個数: 24

約数和(自身を含む): 30910464

約数和(自身を除く): 12450393

約数列:

[1, 3, 7, 9, 21, 63, 71, 213, 497, 639, 1491, 4127, 4473, 12381, 28889, 37143, 86667, 260001, 293017, 879051, 2051119, 2637153, 6153357, 18460071]

約数ペア:

[(1, 18460071), (3, 6153357), (7, 2637153), (9, 2051119), (21, 879051), (63, 293017), (71, 260001), (213, 86667), (497, 37143), (639, 28889), (1491, 12381), (4127, 4473)]