128410821

素因数分解:

$3^2\times 7^2\times {\mathrm{11}}^1\times {\mathrm{103}}^1\times {\mathrm{257}}^1$

素因数の和:391

約数の個数: 72

約数和(自身を含む): 238590144

約数和(自身を除く): 110179323

約数列:

[1, 3, 7, 9, 11, 21, 33, 49, 63, 77, 99, 103, 147, 231, 257, 309, 441, 539, 693, 721, 771, 927, 1133, 1617, 1799, 2163, 2313, 2827, 3399, 4851, 5047, 5397, 6489, 7931, 8481, 10197, 12593, 15141, 16191, 19789, 23793, 25443, 26471, 37779, 45423, 55517, 59367, 71379, 79413, 113337, 138523, 166551, 178101, 185297, 238239, 291181, 415569, 499653, 555891, 873543, 1246707, 1297079, 1667673, 2038267, 2620629, 3891237, 6114801, 11673711, 14267869, 18344403, 42803607, 128410821]

約数ペア:

[(1, 128410821), (3, 42803607), (7, 18344403), (9, 14267869), (11, 11673711), (21, 6114801), (33, 3891237), (49, 2620629), (63, 2038267), (77, 1667673), (99, 1297079), (103, 1246707), (147, 873543), (231, 555891), (257, 499653), (309, 415569), (441, 291181), (539, 238239), (693, 185297), (721, 178101), (771, 166551), (927, 138523), (1133, 113337), (1617, 79413), (1799, 71379), (2163, 59367), (2313, 55517), (2827, 45423), (3399, 37779), (4851, 26471), (5047, 25443), (5397, 23793), (6489, 19789), (7931, 16191), (8481, 15141), (10197, 12593)]