19912210

素因数分解:

$2^1\times 5^1\times {\mathrm{73}}^1\times {\mathrm{27277}}^1$

素因数の和:27357

約数の個数: 16

約数和(自身を含む): 36334296

約数和(自身を除く): 16422086

約数列:

[1, 2, 5, 10, 73, 146, 365, 730, 27277, 54554, 136385, 272770, 1991221, 3982442, 9956105, 19912210]

約数ペア:

[(1, 19912210), (2, 9956105), (5, 3982442), (10, 1991221), (73, 272770), (146, 136385), (365, 54554), (730, 27277)]