20178954405

素因数分解:

$3^2\times 5^1\times {\mathrm{211}}^1\times {\mathrm{2125219}}^1$

素因数の和:2125441

約数の個数: 24

約数和(自身を含む): 35142637920

約数和(自身を除く): 14963683515

約数列:

[1, 3, 5, 9, 15, 45, 211, 633, 1055, 1899, 3165, 9495, 2125219, 6375657, 10626095, 19126971, 31878285, 95634855, 448421209, 1345263627, 2242106045, 4035790881, 6726318135, 20178954405]

約数ペア:

[(1, 20178954405), (3, 6726318135), (5, 4035790881), (9, 2242106045), (15, 1345263627), (45, 448421209), (211, 95634855), (633, 31878285), (1055, 19126971), (1899, 10626095), (3165, 6375657), (9495, 2125219)]