19680435

素因数分解:

$3^3\times 5^1\times {\mathrm{73}}^1\times {\mathrm{1997}}^1$

素因数の和:2084

約数の個数: 32

約数和(自身を含む): 35484480

約数和(自身を除く): 15804045

約数列:

[1, 3, 5, 9, 15, 27, 45, 73, 135, 219, 365, 657, 1095, 1971, 1997, 3285, 5991, 9855, 9985, 17973, 29955, 53919, 89865, 145781, 269595, 437343, 728905, 1312029, 2186715, 3936087, 6560145, 19680435]

約数ペア:

[(1, 19680435), (3, 6560145), (5, 3936087), (9, 2186715), (15, 1312029), (27, 728905), (45, 437343), (73, 269595), (135, 145781), (219, 89865), (365, 53919), (657, 29955), (1095, 17973), (1971, 9985), (1997, 9855), (3285, 5991)]