19748511

素因数分解:

$3^2\times {\mathrm{41}}^1\times {\mathrm{109}}^1\times {\mathrm{491}}^1$

素因数の和:647

約数の個数: 24

約数和(自身を含む): 29549520

約数和(自身を除く): 9801009

約数列:

[1, 3, 9, 41, 109, 123, 327, 369, 491, 981, 1473, 4419, 4469, 13407, 20131, 40221, 53519, 60393, 160557, 181179, 481671, 2194279, 6582837, 19748511]

約数ペア:

[(1, 19748511), (3, 6582837), (9, 2194279), (41, 481671), (109, 181179), (123, 160557), (327, 60393), (369, 53519), (491, 40221), (981, 20131), (1473, 13407), (4419, 4469)]