20730890907

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{179}}^1\times {\mathrm{756961}}^1$

素因数の和:757163

約数の個数: 24

約数和(自身を含む): 31883239440

約数和(自身を除く): 11152348533

約数列:

[1, 3, 9, 17, 51, 153, 179, 537, 1611, 3043, 9129, 27387, 756961, 2270883, 6812649, 12868337, 38605011, 115815033, 135496019, 406488057, 1219464171, 2303432323, 6910296969, 20730890907]

約数ペア:

[(1, 20730890907), (3, 6910296969), (9, 2303432323), (17, 1219464171), (51, 406488057), (153, 135496019), (179, 115815033), (537, 38605011), (1611, 12868337), (3043, 6812649), (9129, 2270883), (27387, 756961)]