247209215

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{173}}^1\times {\mathrm{25981}}^1$

素因数の和:26170

約数の個数: 16

約数和(自身を含む): 325502496

約数和(自身を除く): 78293281

約数列:

[1, 5, 11, 55, 173, 865, 1903, 9515, 25981, 129905, 285791, 1428955, 4494713, 22473565, 49441843, 247209215]

約数ペア:

[(1, 247209215), (5, 49441843), (11, 22473565), (55, 4494713), (173, 1428955), (865, 285791), (1903, 129905), (9515, 25981)]