20997984

素因数分解:

$2^5\times 3^1\times 7^1\times {\mathrm{31247}}^1$

素因数の和:31267

約数の個数: 48

約数和(自身を含む): 62995968

約数和(自身を除く): 41997984

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 32, 42, 48, 56, 84, 96, 112, 168, 224, 336, 672, 31247, 62494, 93741, 124988, 187482, 218729, 249976, 374964, 437458, 499952, 656187, 749928, 874916, 999904, 1312374, 1499856, 1749832, 2624748, 2999712, 3499664, 5249496, 6999328, 10498992, 20997984]

約数ペア:

[(1, 20997984), (2, 10498992), (3, 6999328), (4, 5249496), (6, 3499664), (7, 2999712), (8, 2624748), (12, 1749832), (14, 1499856), (16, 1312374), (21, 999904), (24, 874916), (28, 749928), (32, 656187), (42, 499952), (48, 437458), (56, 374964), (84, 249976), (96, 218729), (112, 187482), (168, 124988), (224, 93741), (336, 62494), (672, 31247)]