20051219811

素因数分解:

$3^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{103}}^1\times {\mathrm{271}}^1\times {\mathrm{433}}^1$

素因数の和:896

約数の個数: 64

約数和(自身を含む): 31429099520

約数和(自身を除く): 11377879709

約数列:

[1, 3, 7, 21, 79, 103, 237, 271, 309, 433, 553, 721, 813, 1299, 1659, 1897, 2163, 3031, 5691, 8137, 9093, 21409, 24411, 27913, 34207, 44599, 56959, 64227, 83739, 102621, 117343, 133797, 149863, 170877, 195391, 239449, 312193, 352029, 449589, 586173, 718347, 821401, 936579, 2205127, 2464203, 3523321, 6615381, 9270097, 10569963, 12086329, 15435889, 24663247, 27810291, 36258987, 46307667, 64890679, 73989741, 84604303, 194672037, 253812909, 954819991, 2864459973, 6683739937, 20051219811]

約数ペア:

[(1, 20051219811), (3, 6683739937), (7, 2864459973), (21, 954819991), (79, 253812909), (103, 194672037), (237, 84604303), (271, 73989741), (309, 64890679), (433, 46307667), (553, 36258987), (721, 27810291), (813, 24663247), (1299, 15435889), (1659, 12086329), (1897, 10569963), (2163, 9270097), (3031, 6615381), (5691, 3523321), (8137, 2464203), (9093, 2205127), (21409, 936579), (24411, 821401), (27913, 718347), (34207, 586173), (44599, 449589), (56959, 352029), (64227, 312193), (83739, 239449), (102621, 195391), (117343, 170877), (133797, 149863)]