19701105

素因数分解:

$3^1\times 5^1\times {\mathrm{661}}^1\times {\mathrm{1987}}^1$

素因数の和:2656

約数の個数: 16

約数和(自身を含む): 31585344

約数和(自身を除く): 11884239

約数列:

[1, 3, 5, 15, 661, 1983, 1987, 3305, 5961, 9915, 9935, 29805, 1313407, 3940221, 6567035, 19701105]

約数ペア:

[(1, 19701105), (3, 6567035), (5, 3940221), (15, 1313407), (661, 29805), (1983, 9935), (1987, 9915), (3305, 5961)]