20429415

素因数分解:

$3^4\times 5^1\times {\mathrm{73}}^1\times {\mathrm{691}}^1$

素因数の和:781

約数の個数: 40

約数和(自身を含む): 37177008

約数和(自身を除く): 16747593

約数列:

[1, 3, 5, 9, 15, 27, 45, 73, 81, 135, 219, 365, 405, 657, 691, 1095, 1971, 2073, 3285, 3455, 5913, 6219, 9855, 10365, 18657, 29565, 31095, 50443, 55971, 93285, 151329, 252215, 279855, 453987, 756645, 1361961, 2269935, 4085883, 6809805, 20429415]

約数ペア:

[(1, 20429415), (3, 6809805), (5, 4085883), (9, 2269935), (15, 1361961), (27, 756645), (45, 453987), (73, 279855), (81, 252215), (135, 151329), (219, 93285), (365, 55971), (405, 50443), (657, 31095), (691, 29565), (1095, 18657), (1971, 10365), (2073, 9855), (3285, 6219), (3455, 5913)]