20347084821

素因数分解:

$3^1\times 7^4\times {\mathrm{2824807}}^1$

素因数の和:2824838

約数の個数: 20

約数和(自身を含む): 31649148832

約数和(自身を除く): 11302064011

約数列:

[1, 3, 7, 21, 49, 147, 343, 1029, 2401, 7203, 2824807, 8474421, 19773649, 59320947, 138415543, 415246629, 968908801, 2906726403, 6782361607, 20347084821]

約数ペア:

[(1, 20347084821), (3, 6782361607), (7, 2906726403), (21, 968908801), (49, 415246629), (147, 138415543), (343, 59320947), (1029, 19773649), (2401, 8474421), (7203, 2824807)]