19960983

素因数分解:

$3^2\times 7^2\times {\mathrm{45263}}^1$

素因数の和:45283

約数の個数: 18

約数和(自身を含む): 33540624

約数和(自身を除く): 13579641

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 441, 45263, 135789, 316841, 407367, 950523, 2217887, 2851569, 6653661, 19960983]

約数ペア:

[(1, 19960983), (3, 6653661), (7, 2851569), (9, 2217887), (21, 950523), (49, 407367), (63, 316841), (147, 135789), (441, 45263)]