21300651

素因数分解:

$3^6\times {\mathrm{61}}^1\times {\mathrm{479}}^1$

素因数の和:558

約数の個数: 28

約数和(自身を含む): 32527680

約数和(自身を除く): 11227029

約数列:

[1, 3, 9, 27, 61, 81, 183, 243, 479, 549, 729, 1437, 1647, 4311, 4941, 12933, 14823, 29219, 38799, 44469, 87657, 116397, 262971, 349191, 788913, 2366739, 7100217, 21300651]

約数ペア:

[(1, 21300651), (3, 7100217), (9, 2366739), (27, 788913), (61, 349191), (81, 262971), (183, 116397), (243, 87657), (479, 44469), (549, 38799), (729, 29219), (1437, 14823), (1647, 12933), (4311, 4941)]