208120129

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{151}}^1\times {\mathrm{241}}^1$

素因数の和:461

約数の個数: 32

約数和(自身を含む): 258959360

約数和(自身を除く): 50839231

約数列:

[1, 7, 19, 43, 133, 151, 241, 301, 817, 1057, 1687, 2869, 4579, 5719, 6493, 10363, 20083, 32053, 36391, 45451, 72541, 123367, 196897, 254737, 691429, 863569, 1378279, 1564813, 4840003, 10953691, 29731447, 208120129]

約数ペア:

[(1, 208120129), (7, 29731447), (19, 10953691), (43, 4840003), (133, 1564813), (151, 1378279), (241, 863569), (301, 691429), (817, 254737), (1057, 196897), (1687, 123367), (2869, 72541), (4579, 45451), (5719, 36391), (6493, 32053), (10363, 20083)]