21626685

素因数分解:

$3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{419}}^1$

素因数の和:498

約数の個数: 48

約数和(自身を含む): 39836160

約数和(自身を除く): 18209475

約数列:

[1, 3, 5, 9, 15, 31, 37, 45, 93, 111, 155, 185, 279, 333, 419, 465, 555, 1147, 1257, 1395, 1665, 2095, 3441, 3771, 5735, 6285, 10323, 12989, 15503, 17205, 18855, 38967, 46509, 51615, 64945, 77515, 116901, 139527, 194835, 232545, 480593, 584505, 697635, 1441779, 2402965, 4325337, 7208895, 21626685]

約数ペア:

[(1, 21626685), (3, 7208895), (5, 4325337), (9, 2402965), (15, 1441779), (31, 697635), (37, 584505), (45, 480593), (93, 232545), (111, 194835), (155, 139527), (185, 116901), (279, 77515), (333, 64945), (419, 51615), (465, 46509), (555, 38967), (1147, 18855), (1257, 17205), (1395, 15503), (1665, 12989), (2095, 10323), (3441, 6285), (3771, 5735)]