7781751

素因数分解:

$3^4\times {\mathrm{23}}^1\times {\mathrm{4177}}^1$

素因数の和:4212

約数の個数: 20

約数和(自身を含む): 12132912

約数和(自身を除く): 4351161

約数列:

[1, 3, 9, 23, 27, 69, 81, 207, 621, 1863, 4177, 12531, 37593, 96071, 112779, 288213, 338337, 864639, 2593917, 7781751]

約数ペア:

[(1, 7781751), (3, 2593917), (9, 864639), (23, 338337), (27, 288213), (69, 112779), (81, 96071), (207, 37593), (621, 12531), (1863, 4177)]