208978868

素因数分解:

$2^2\times 7^1\times {\mathrm{1091}}^1\times {\mathrm{6841}}^1$

素因数の和:7943

約数の個数: 24

約数和(自身を含む): 418401984

約数和(自身を除く): 209423116

約数列:

[1, 2, 4, 7, 14, 28, 1091, 2182, 4364, 6841, 7637, 13682, 15274, 27364, 30548, 47887, 95774, 191548, 7463531, 14927062, 29854124, 52244717, 104489434, 208978868]

約数ペア:

[(1, 208978868), (2, 104489434), (4, 52244717), (7, 29854124), (14, 14927062), (28, 7463531), (1091, 191548), (2182, 95774), (4364, 47887), (6841, 30548), (7637, 27364), (13682, 15274)]