81729774

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{648649}}^1$

素因数の和:648664

約数の個数: 24

約数和(自身を含む): 202378800

約数和(自身を除く): 120649026

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 126, 648649, 1297298, 1945947, 3891894, 4540543, 5837841, 9081086, 11675682, 13621629, 27243258, 40864887, 81729774]

約数ペア:

[(1, 81729774), (2, 40864887), (3, 27243258), (6, 13621629), (7, 11675682), (9, 9081086), (14, 5837841), (18, 4540543), (21, 3891894), (42, 1945947), (63, 1297298), (126, 648649)]