20740921341

素因数分解:

$3^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{1579}}^1\times {\mathrm{4703}}^1$

素因数の和:6318

約数の個数: 48

約数和(自身を含む): 33891379200

約数和(自身を除く): 13150457859

約数列:

[1, 3, 7, 19, 21, 49, 57, 133, 147, 399, 931, 1579, 2793, 4703, 4737, 11053, 14109, 30001, 32921, 33159, 77371, 89357, 90003, 98763, 210007, 230447, 232113, 268071, 625499, 630021, 691341, 1470049, 1876497, 4378493, 4410147, 7426037, 13135479, 22278111, 51982259, 141094703, 155946777, 363875813, 423284109, 987662921, 1091627439, 2962988763, 6913640447, 20740921341]

約数ペア:

[(1, 20740921341), (3, 6913640447), (7, 2962988763), (19, 1091627439), (21, 987662921), (49, 423284109), (57, 363875813), (133, 155946777), (147, 141094703), (399, 51982259), (931, 22278111), (1579, 13135479), (2793, 7426037), (4703, 4410147), (4737, 4378493), (11053, 1876497), (14109, 1470049), (30001, 691341), (32921, 630021), (33159, 625499), (77371, 268071), (89357, 232113), (90003, 230447), (98763, 210007)]