19704573

素因数分解:

$3^3\times 7^1\times {\mathrm{137}}^1\times {\mathrm{761}}^1$

素因数の和:914

約数の個数: 32

約数和(自身を含む): 33649920

約数和(自身を除く): 13945347

約数列:

[1, 3, 7, 9, 21, 27, 63, 137, 189, 411, 761, 959, 1233, 2283, 2877, 3699, 5327, 6849, 8631, 15981, 20547, 25893, 47943, 104257, 143829, 312771, 729799, 938313, 2189397, 2814939, 6568191, 19704573]

約数ペア:

[(1, 19704573), (3, 6568191), (7, 2814939), (9, 2189397), (21, 938313), (27, 729799), (63, 312771), (137, 143829), (189, 104257), (411, 47943), (761, 25893), (959, 20547), (1233, 15981), (2283, 8631), (2877, 6849), (3699, 5327)]