20853252

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{83}}^1\times {\mathrm{997}}^1$

素因数の和:1097

約数の個数: 72

約数和(自身を含む): 61029696

約数和(自身を除く): 40176444

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 83, 84, 126, 166, 249, 252, 332, 498, 581, 747, 996, 997, 1162, 1494, 1743, 1994, 2324, 2988, 2991, 3486, 3988, 5229, 5982, 6972, 6979, 8973, 10458, 11964, 13958, 17946, 20916, 20937, 27916, 35892, 41874, 62811, 82751, 83748, 125622, 165502, 248253, 251244, 331004, 496506, 579257, 744759, 993012, 1158514, 1489518, 1737771, 2317028, 2979036, 3475542, 5213313, 6951084, 10426626, 20853252]

約数ペア:

[(1, 20853252), (2, 10426626), (3, 6951084), (4, 5213313), (6, 3475542), (7, 2979036), (9, 2317028), (12, 1737771), (14, 1489518), (18, 1158514), (21, 993012), (28, 744759), (36, 579257), (42, 496506), (63, 331004), (83, 251244), (84, 248253), (126, 165502), (166, 125622), (249, 83748), (252, 82751), (332, 62811), (498, 41874), (581, 35892), (747, 27916), (996, 20937), (997, 20916), (1162, 17946), (1494, 13958), (1743, 11964), (1994, 10458), (2324, 8973), (2988, 6979), (2991, 6972), (3486, 5982), (3988, 5229)]