20984964

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{1747}}^1$

素因数の和:1785

約数の個数: 96

約数和(自身を含む): 65780736

約数和(自身を除く): 44795772

約数列:

[1, 2, 3, 4, 6, 7, 11, 12, 13, 14, 21, 22, 26, 28, 33, 39, 42, 44, 52, 66, 77, 78, 84, 91, 132, 143, 154, 156, 182, 231, 273, 286, 308, 364, 429, 462, 546, 572, 858, 924, 1001, 1092, 1716, 1747, 2002, 3003, 3494, 4004, 5241, 6006, 6988, 10482, 12012, 12229, 19217, 20964, 22711, 24458, 36687, 38434, 45422, 48916, 57651, 68133, 73374, 76868, 90844, 115302, 134519, 136266, 146748, 158977, 230604, 249821, 269038, 272532, 317954, 403557, 476931, 499642, 538076, 635908, 749463, 807114, 953862, 999284, 1498926, 1614228, 1748747, 1907724, 2997852, 3497494, 5246241, 6994988, 10492482, 20984964]

約数ペア:

[(1, 20984964), (2, 10492482), (3, 6994988), (4, 5246241), (6, 3497494), (7, 2997852), (11, 1907724), (12, 1748747), (13, 1614228), (14, 1498926), (21, 999284), (22, 953862), (26, 807114), (28, 749463), (33, 635908), (39, 538076), (42, 499642), (44, 476931), (52, 403557), (66, 317954), (77, 272532), (78, 269038), (84, 249821), (91, 230604), (132, 158977), (143, 146748), (154, 136266), (156, 134519), (182, 115302), (231, 90844), (273, 76868), (286, 73374), (308, 68133), (364, 57651), (429, 48916), (462, 45422), (546, 38434), (572, 36687), (858, 24458), (924, 22711), (1001, 20964), (1092, 19217), (1716, 12229), (1747, 12012), (2002, 10482), (3003, 6988), (3494, 6006), (4004, 5241)]