19861545

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{31}}^1\times {\mathrm{353}}^1$

素因数の和:414

約数の個数: 48

約数和(自身を含む): 36158976

約数和(自身を除く): 16297431

約数列:

[1, 3, 5, 11, 15, 31, 33, 55, 93, 121, 155, 165, 341, 353, 363, 465, 605, 1023, 1059, 1705, 1765, 1815, 3751, 3883, 5115, 5295, 10943, 11253, 11649, 18755, 19415, 32829, 42713, 54715, 56265, 58245, 120373, 128139, 164145, 213565, 361119, 601865, 640695, 1324103, 1805595, 3972309, 6620515, 19861545]

約数ペア:

[(1, 19861545), (3, 6620515), (5, 3972309), (11, 1805595), (15, 1324103), (31, 640695), (33, 601865), (55, 361119), (93, 213565), (121, 164145), (155, 128139), (165, 120373), (341, 58245), (353, 56265), (363, 54715), (465, 42713), (605, 32829), (1023, 19415), (1059, 18755), (1705, 11649), (1765, 11253), (1815, 10943), (3751, 5295), (3883, 5115)]