419823

素因数分解:

$3^4\times {\mathrm{71}}^1\times {\mathrm{73}}^1$

素因数の和:156

約数の個数: 20

約数和(自身を含む): 644688

約数和(自身を除く): 224865

約数列:

[1, 3, 9, 27, 71, 73, 81, 213, 219, 639, 657, 1917, 1971, 5183, 5751, 5913, 15549, 46647, 139941, 419823]

約数ペア:

[(1, 419823), (3, 139941), (9, 46647), (27, 15549), (71, 5913), (73, 5751), (81, 5183), (213, 1971), (219, 1917), (639, 657)]