18874569

素因数分解:

$3^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{12659}}^1$

素因数の和:12740

約数の個数: 16

約数和(自身を含む): 29168640

約数和(自身を除く): 10294071

約数列:

[1, 3, 7, 21, 71, 213, 497, 1491, 12659, 37977, 88613, 265839, 898789, 2696367, 6291523, 18874569]

約数ペア:

[(1, 18874569), (3, 6291523), (7, 2696367), (21, 898789), (71, 265839), (213, 88613), (497, 37977), (1491, 12659)]