21291255865

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{83}}^1\times {\mathrm{317}}^1\times {\mathrm{14713}}^1$

素因数の和:15129

約数の個数: 32

約数和(自身を含む): 28298906496

約数和(自身を除く): 7007650631

約数列:

[1, 5, 11, 55, 83, 317, 415, 913, 1585, 3487, 4565, 14713, 17435, 26311, 73565, 131555, 161843, 289421, 809215, 1221179, 1447105, 4664021, 6105895, 13432969, 23320105, 51304231, 67164845, 256521155, 387113743, 1935568715, 4258251173, 21291255865]

約数ペア:

[(1, 21291255865), (5, 4258251173), (11, 1935568715), (55, 387113743), (83, 256521155), (317, 67164845), (415, 51304231), (913, 23320105), (1585, 13432969), (3487, 6105895), (4565, 4664021), (14713, 1447105), (17435, 1221179), (26311, 809215), (73565, 289421), (131555, 161843)]