20921922

素因数分解:

$2^1\times 3^3\times 7^2\times {\mathrm{7907}}^1$

素因数の和:7932

約数の個数: 48

約数和(自身を含む): 54090720

約数和(自身を除く): 33168798

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 42, 49, 54, 63, 98, 126, 147, 189, 294, 378, 441, 882, 1323, 2646, 7907, 15814, 23721, 47442, 55349, 71163, 110698, 142326, 166047, 213489, 332094, 387443, 426978, 498141, 774886, 996282, 1162329, 1494423, 2324658, 2988846, 3486987, 6973974, 10460961, 20921922]

約数ペア:

[(1, 20921922), (2, 10460961), (3, 6973974), (6, 3486987), (7, 2988846), (9, 2324658), (14, 1494423), (18, 1162329), (21, 996282), (27, 774886), (42, 498141), (49, 426978), (54, 387443), (63, 332094), (98, 213489), (126, 166047), (147, 142326), (189, 110698), (294, 71163), (378, 55349), (441, 47442), (882, 23721), (1323, 15814), (2646, 7907)]