42000039

素因数分解:

$3^4\times {\mathrm{73}}^1\times {\mathrm{7103}}^1$

素因数の和:7188

約数の個数: 20

約数和(自身を含む): 63609216

約数和(自身を除く): 21609177

約数列:

[1, 3, 9, 27, 73, 81, 219, 657, 1971, 5913, 7103, 21309, 63927, 191781, 518519, 575343, 1555557, 4666671, 14000013, 42000039]

約数ペア:

[(1, 42000039), (3, 14000013), (9, 4666671), (27, 1555557), (73, 575343), (81, 518519), (219, 191781), (657, 63927), (1971, 21309), (5913, 7103)]