18409377

素因数分解:

$3^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{12347}}^1$

素因数の和:12428

約数の個数: 16

約数和(自身を含む): 28449792

約数和(自身を除く): 10040415

約数列:

[1, 3, 7, 21, 71, 213, 497, 1491, 12347, 37041, 86429, 259287, 876637, 2629911, 6136459, 18409377]

約数ペア:

[(1, 18409377), (3, 6136459), (7, 2629911), (21, 876637), (71, 259287), (213, 86429), (497, 37041), (1491, 12347)]