20766746

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1$

素因数の和:108

約数の個数: 96

約数和(自身を含む): 45045504

約数和(自身を除く): 24278758

約数列:

[1, 2, 7, 11, 13, 14, 22, 23, 26, 41, 46, 77, 82, 91, 121, 143, 154, 161, 182, 242, 253, 286, 287, 299, 322, 451, 506, 533, 574, 598, 847, 902, 943, 1001, 1066, 1573, 1694, 1771, 1886, 2002, 2093, 2783, 3146, 3157, 3289, 3542, 3731, 4186, 4961, 5566, 5863, 6314, 6578, 6601, 7462, 9922, 10373, 11011, 11726, 12259, 13202, 19481, 20746, 22022, 23023, 24518, 34727, 36179, 38962, 41041, 46046, 64493, 69454, 72358, 72611, 82082, 85813, 114103, 128986, 134849, 145222, 171626, 228206, 253253, 269698, 451451, 506506, 798721, 902902, 943943, 1483339, 1597442, 1887886, 2966678, 10383373, 20766746]

約数ペア:

[(1, 20766746), (2, 10383373), (7, 2966678), (11, 1887886), (13, 1597442), (14, 1483339), (22, 943943), (23, 902902), (26, 798721), (41, 506506), (46, 451451), (77, 269698), (82, 253253), (91, 228206), (121, 171626), (143, 145222), (154, 134849), (161, 128986), (182, 114103), (242, 85813), (253, 82082), (286, 72611), (287, 72358), (299, 69454), (322, 64493), (451, 46046), (506, 41041), (533, 38962), (574, 36179), (598, 34727), (847, 24518), (902, 23023), (943, 22022), (1001, 20746), (1066, 19481), (1573, 13202), (1694, 12259), (1771, 11726), (1886, 11011), (2002, 10373), (2093, 9922), (2783, 7462), (3146, 6601), (3157, 6578), (3289, 6314), (3542, 5863), (3731, 5566), (4186, 4961)]