42500003

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{137}}^1\times {\mathrm{487}}^1$

素因数の和:651

約数の個数: 24

約数和(自身を含む): 53740512

約数和(自身を除く): 11240509

約数列:

[1, 7, 13, 49, 91, 137, 487, 637, 959, 1781, 3409, 6331, 6713, 12467, 23863, 44317, 66719, 87269, 310219, 467033, 867347, 3269231, 6071429, 42500003]

約数ペア:

[(1, 42500003), (7, 6071429), (13, 3269231), (49, 867347), (91, 467033), (137, 310219), (487, 87269), (637, 66719), (959, 44317), (1781, 23863), (3409, 12467), (6331, 6713)]