208518079

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{283}}^1\times {\mathrm{1367}}^1$

素因数の和:1675

約数の個数: 24

約数和(自身を含む): 265742208

約数和(自身を除く): 57224129

約数列:

[1, 7, 11, 49, 77, 283, 539, 1367, 1981, 3113, 9569, 13867, 15037, 21791, 66983, 105259, 152537, 386861, 736813, 2708027, 4255471, 18956189, 29788297, 208518079]

約数ペア:

[(1, 208518079), (7, 29788297), (11, 18956189), (49, 4255471), (77, 2708027), (283, 736813), (539, 386861), (1367, 152537), (1981, 105259), (3113, 66983), (9569, 21791), (13867, 15037)]