21537201

素因数分解:

$3^1\times 7^1\times {\mathrm{97}}^2\times {\mathrm{109}}^1$

素因数の和:313

約数の個数: 24

約数和(自身を含む): 33464640

約数和(自身を除く): 11927439

約数列:

[1, 3, 7, 21, 97, 109, 291, 327, 679, 763, 2037, 2289, 9409, 10573, 28227, 31719, 65863, 74011, 197589, 222033, 1025581, 3076743, 7179067, 21537201]

約数ペア:

[(1, 21537201), (3, 7179067), (7, 3076743), (21, 1025581), (97, 222033), (109, 197589), (291, 74011), (327, 65863), (679, 31719), (763, 28227), (2037, 10573), (2289, 9409)]