21420696

素因数分解:

$2^3\times 3^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{1979}}^1$

素因数の和:2040

約数の個数: 64

約数和(自身を含む): 59875200

約数和(自身を除く): 38454504

約数列:

[1, 2, 3, 4, 6, 8, 11, 12, 22, 24, 33, 41, 44, 66, 82, 88, 123, 132, 164, 246, 264, 328, 451, 492, 902, 984, 1353, 1804, 1979, 2706, 3608, 3958, 5412, 5937, 7916, 10824, 11874, 15832, 21769, 23748, 43538, 47496, 65307, 81139, 87076, 130614, 162278, 174152, 243417, 261228, 324556, 486834, 522456, 649112, 892529, 973668, 1785058, 1947336, 2677587, 3570116, 5355174, 7140232, 10710348, 21420696]

約数ペア:

[(1, 21420696), (2, 10710348), (3, 7140232), (4, 5355174), (6, 3570116), (8, 2677587), (11, 1947336), (12, 1785058), (22, 973668), (24, 892529), (33, 649112), (41, 522456), (44, 486834), (66, 324556), (82, 261228), (88, 243417), (123, 174152), (132, 162278), (164, 130614), (246, 87076), (264, 81139), (328, 65307), (451, 47496), (492, 43538), (902, 23748), (984, 21769), (1353, 15832), (1804, 11874), (1979, 10824), (2706, 7916), (3608, 5937), (3958, 5412)]