19501317

素因数分解:

$3^4\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{509}}^1$

素因数の和:575

約数の個数: 40

約数和(自身を含む): 32582880

約数和(自身を除く): 13081563

約数列:

[1, 3, 9, 11, 27, 33, 43, 81, 99, 129, 297, 387, 473, 509, 891, 1161, 1419, 1527, 3483, 4257, 4581, 5599, 12771, 13743, 16797, 21887, 38313, 41229, 50391, 65661, 151173, 196983, 240757, 453519, 590949, 722271, 1772847, 2166813, 6500439, 19501317]

約数ペア:

[(1, 19501317), (3, 6500439), (9, 2166813), (11, 1772847), (27, 722271), (33, 590949), (43, 453519), (81, 240757), (99, 196983), (129, 151173), (297, 65661), (387, 50391), (473, 41229), (509, 38313), (891, 21887), (1161, 16797), (1419, 13743), (1527, 12771), (3483, 5599), (4257, 4581)]