19781143083

素因数分解:

$3^6\times {\mathrm{13}}^1\times {\mathrm{1307}}^1\times {\mathrm{1597}}^1$

素因数の和:2935

約数の個数: 56

約数和(自身を含む): 31983995568

約数和(自身を除く): 12202852485

約数列:

[1, 3, 9, 13, 27, 39, 81, 117, 243, 351, 729, 1053, 1307, 1597, 3159, 3921, 4791, 9477, 11763, 14373, 16991, 20761, 35289, 43119, 50973, 62283, 105867, 129357, 152919, 186849, 317601, 388071, 458757, 560547, 952803, 1164213, 1376271, 1681641, 2087279, 4128813, 5044923, 6261837, 12386439, 15134769, 18785511, 27134627, 56356533, 81403881, 169069599, 244211643, 507208797, 732634929, 1521626391, 2197904787, 6593714361, 19781143083]

約数ペア:

[(1, 19781143083), (3, 6593714361), (9, 2197904787), (13, 1521626391), (27, 732634929), (39, 507208797), (81, 244211643), (117, 169069599), (243, 81403881), (351, 56356533), (729, 27134627), (1053, 18785511), (1307, 15134769), (1597, 12386439), (3159, 6261837), (3921, 5044923), (4791, 4128813), (9477, 2087279), (11763, 1681641), (14373, 1376271), (16991, 1164213), (20761, 952803), (35289, 560547), (43119, 458757), (50973, 388071), (62283, 317601), (105867, 186849), (129357, 152919)]