18864279

素因数分解:

$3^3\times 7^1\times {\mathrm{151}}^1\times {\mathrm{661}}^1$

素因数の和:828

約数の個数: 32

約数和(自身を含む): 32199680

約数和(自身を除く): 13335401

約数列:

[1, 3, 7, 9, 21, 27, 63, 151, 189, 453, 661, 1057, 1359, 1983, 3171, 4077, 4627, 5949, 9513, 13881, 17847, 28539, 41643, 99811, 124929, 299433, 698677, 898299, 2096031, 2694897, 6288093, 18864279]

約数ペア:

[(1, 18864279), (3, 6288093), (7, 2694897), (9, 2096031), (21, 898299), (27, 698677), (63, 299433), (151, 124929), (189, 99811), (453, 41643), (661, 28539), (1057, 17847), (1359, 13881), (1983, 9513), (3171, 5949), (4077, 4627)]