19782159

素因数分解:

$3^1\times {\mathrm{47}}^1\times {\mathrm{307}}^1\times {\mathrm{457}}^1$

素因数の和:814

約数の個数: 16

約数和(自身を含む): 27084288

約数和(自身を除く): 7302129

約数列:

[1, 3, 47, 141, 307, 457, 921, 1371, 14429, 21479, 43287, 64437, 140299, 420897, 6594053, 19782159]

約数ペア:

[(1, 19782159), (3, 6594053), (47, 420897), (141, 140299), (307, 64437), (457, 43287), (921, 21479), (1371, 14429)]