18000983

素因数分解:

$7^3\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{367}}^1$

素因数の和:412

約数の個数: 32

約数和(自身を含む): 24729600

約数和(自身を除く): 6728617

約数列:

[1, 7, 11, 13, 49, 77, 91, 143, 343, 367, 539, 637, 1001, 2569, 3773, 4037, 4459, 4771, 7007, 17983, 28259, 33397, 49049, 52481, 125881, 197813, 233779, 367367, 1384691, 1636453, 2571569, 18000983]

約数ペア:

[(1, 18000983), (7, 2571569), (11, 1636453), (13, 1384691), (49, 367367), (77, 233779), (91, 197813), (143, 125881), (343, 52481), (367, 49049), (539, 33397), (637, 28259), (1001, 17983), (2569, 7007), (3773, 4771), (4037, 4459)]