171815889

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{241}}^1\times {\mathrm{1997}}^1$

素因数の和:2265

約数の個数: 32

約数和(自身を含む): 278505216

約数和(自身を除く): 106689327

約数列:

[1, 3, 7, 17, 21, 51, 119, 241, 357, 723, 1687, 1997, 4097, 5061, 5991, 12291, 13979, 28679, 33949, 41937, 86037, 101847, 237643, 481277, 712929, 1443831, 3368939, 8181709, 10106817, 24545127, 57271963, 171815889]

約数ペア:

[(1, 171815889), (3, 57271963), (7, 24545127), (17, 10106817), (21, 8181709), (51, 3368939), (119, 1443831), (241, 712929), (357, 481277), (723, 237643), (1687, 101847), (1997, 86037), (4097, 41937), (5061, 33949), (5991, 28679), (12291, 13979)]