2947905

素因数分解:

$3^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{601}}^1$

素因数の和:721

約数の個数: 24

約数和(自身を含む): 5165160

約数和(自身を除く): 2217255

約数列:

[1, 3, 5, 9, 15, 45, 109, 327, 545, 601, 981, 1635, 1803, 3005, 4905, 5409, 9015, 27045, 65509, 196527, 327545, 589581, 982635, 2947905]

約数ペア:

[(1, 2947905), (3, 982635), (5, 589581), (9, 327545), (15, 196527), (45, 65509), (109, 27045), (327, 9015), (545, 5409), (601, 4905), (981, 3005), (1635, 1803)]