661197891

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{103}}^1\times {\mathrm{112621}}^1$

素因数の和:112746

約数の個数: 16

約数和(自身を含む): 937015040

約数和(自身を除く): 275817149

約数列:

[1, 3, 19, 57, 103, 309, 1957, 5871, 112621, 337863, 2139799, 6419397, 11599963, 34799889, 220399297, 661197891]

約数ペア:

[(1, 661197891), (3, 220399297), (19, 34799889), (57, 11599963), (103, 6419397), (309, 2139799), (1957, 337863), (5871, 112621)]