250020001

素因数分解:

$7^2\times {\mathrm{11}}^2\times {\mathrm{42169}}^1$

素因数の和:42205

約数の個数: 18

約数和(自身を含む): 319690770

約数和(自身を除く): 69670769

約数列:

[1, 7, 11, 49, 77, 121, 539, 847, 5929, 42169, 295183, 463859, 2066281, 3247013, 5102449, 22729091, 35717143, 250020001]

約数ペア:

[(1, 250020001), (7, 35717143), (11, 22729091), (49, 5102449), (77, 3247013), (121, 2066281), (539, 463859), (847, 295183), (5929, 42169)]