18310378947

素因数分解:

$3^1\times 7^4\times {\mathrm{2542049}}^1$

素因数の和:2542080

約数の個数: 20

約数和(自身を含む): 28481128200

約数和(自身を除く): 10170749253

約数列:

[1, 3, 7, 21, 49, 147, 343, 1029, 2401, 7203, 2542049, 7626147, 17794343, 53383029, 124560401, 373681203, 871922807, 2615768421, 6103459649, 18310378947]

約数ペア:

[(1, 18310378947), (3, 6103459649), (7, 2615768421), (21, 871922807), (49, 373681203), (147, 124560401), (343, 53383029), (1029, 17794343), (2401, 7626147), (7203, 2542049)]