19271439

素因数分解:

$3^4\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{503}}^1$

素因数の和:569

約数の個数: 40

約数和(自身を含む): 32199552

約数和(自身を除く): 12928113

約数列:

[1, 3, 9, 11, 27, 33, 43, 81, 99, 129, 297, 387, 473, 503, 891, 1161, 1419, 1509, 3483, 4257, 4527, 5533, 12771, 13581, 16599, 21629, 38313, 40743, 49797, 64887, 149391, 194661, 237919, 448173, 583983, 713757, 1751949, 2141271, 6423813, 19271439]

約数ペア:

[(1, 19271439), (3, 6423813), (9, 2141271), (11, 1751949), (27, 713757), (33, 583983), (43, 448173), (81, 237919), (99, 194661), (129, 149391), (297, 64887), (387, 49797), (473, 40743), (503, 38313), (891, 21629), (1161, 16599), (1419, 13581), (1509, 12771), (3483, 5533), (4257, 4527)]