18474981

素因数分解:

$3^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{12391}}^1$

素因数の和:12472

約数の個数: 16

約数和(自身を含む): 28551168

約数和(自身を除く): 10076187

約数列:

[1, 3, 7, 21, 71, 213, 497, 1491, 12391, 37173, 86737, 260211, 879761, 2639283, 6158327, 18474981]

約数ペア:

[(1, 18474981), (3, 6158327), (7, 2639283), (21, 879761), (71, 260211), (213, 86737), (497, 37173), (1491, 12391)]