19708731

素因数分解:

$3^3\times 7^2\times {\mathrm{14897}}^1$

素因数の和:14920

約数の個数: 24

約数和(自身を含む): 33967440

約数和(自身を除く): 14258709

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 147, 189, 441, 1323, 14897, 44691, 104279, 134073, 312837, 402219, 729953, 938511, 2189859, 2815533, 6569577, 19708731]

約数ペア:

[(1, 19708731), (3, 6569577), (7, 2815533), (9, 2189859), (21, 938511), (27, 729953), (49, 402219), (63, 312837), (147, 134073), (189, 104279), (441, 44691), (1323, 14897)]