13668215

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{181}}^1\times {\mathrm{1373}}^1$

素因数の和:1570

約数の個数: 16

約数和(自身を含む): 18004896

約数和(自身を除く): 4336681

約数列:

[1, 5, 11, 55, 181, 905, 1373, 1991, 6865, 9955, 15103, 75515, 248513, 1242565, 2733643, 13668215]

約数ペア:

[(1, 13668215), (5, 2733643), (11, 1242565), (55, 248513), (181, 75515), (905, 15103), (1373, 9955), (1991, 6865)]