18744944

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{197}}^1\times {\mathrm{313}}^1$

素因数の和:537

約数の個数: 40

約数和(自身を含む): 38546640

約数和(自身を除く): 19801696

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 197, 304, 313, 394, 626, 788, 1252, 1576, 2504, 3152, 3743, 5008, 5947, 7486, 11894, 14972, 23788, 29944, 47576, 59888, 61661, 95152, 123322, 246644, 493288, 986576, 1171559, 2343118, 4686236, 9372472, 18744944]

約数ペア:

[(1, 18744944), (2, 9372472), (4, 4686236), (8, 2343118), (16, 1171559), (19, 986576), (38, 493288), (76, 246644), (152, 123322), (197, 95152), (304, 61661), (313, 59888), (394, 47576), (626, 29944), (788, 23788), (1252, 14972), (1576, 11894), (2504, 7486), (3152, 5947), (3743, 5008)]