87091004

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{21751}}^1$

素因数の和:21786

約数の個数: 48

約数和(自身を含む): 204642816

約数和(自身を除く): 117551812

約数列:

[1, 2, 4, 7, 11, 13, 14, 22, 26, 28, 44, 52, 77, 91, 143, 154, 182, 286, 308, 364, 572, 1001, 2002, 4004, 21751, 43502, 87004, 152257, 239261, 282763, 304514, 478522, 565526, 609028, 957044, 1131052, 1674827, 1979341, 3110393, 3349654, 3958682, 6220786, 6699308, 7917364, 12441572, 21772751, 43545502, 87091004]

約数ペア:

[(1, 87091004), (2, 43545502), (4, 21772751), (7, 12441572), (11, 7917364), (13, 6699308), (14, 6220786), (22, 3958682), (26, 3349654), (28, 3110393), (44, 1979341), (52, 1674827), (77, 1131052), (91, 957044), (143, 609028), (154, 565526), (182, 478522), (286, 304514), (308, 282763), (364, 239261), (572, 152257), (1001, 87004), (2002, 43502), (4004, 21751)]