19957509

素因数分解:

$3^4\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{1723}}^1$

素因数の和:1759

約数の個数: 40

約数和(自身を含む): 35045472

約数和(自身を除く): 15087963

約数列:

[1, 3, 9, 11, 13, 27, 33, 39, 81, 99, 117, 143, 297, 351, 429, 891, 1053, 1287, 1723, 3861, 5169, 11583, 15507, 18953, 22399, 46521, 56859, 67197, 139563, 170577, 201591, 246389, 511731, 604773, 739167, 1535193, 1814319, 2217501, 6652503, 19957509]

約数ペア:

[(1, 19957509), (3, 6652503), (9, 2217501), (11, 1814319), (13, 1535193), (27, 739167), (33, 604773), (39, 511731), (81, 246389), (99, 201591), (117, 170577), (143, 139563), (297, 67197), (351, 56859), (429, 46521), (891, 22399), (1053, 18953), (1287, 15507), (1723, 11583), (3861, 5169)]