19521441

素因数分解:

$3^2\times {\mathrm{43}}^1\times {\mathrm{73}}^1\times {\mathrm{691}}^1$

素因数の和:813

約数の個数: 24

約数和(自身を含む): 29290976

約数和(自身を除く): 9769535

約数列:

[1, 3, 9, 43, 73, 129, 219, 387, 657, 691, 2073, 3139, 6219, 9417, 28251, 29713, 50443, 89139, 151329, 267417, 453987, 2169049, 6507147, 19521441]

約数ペア:

[(1, 19521441), (3, 6507147), (9, 2169049), (43, 453987), (73, 267417), (129, 151329), (219, 89139), (387, 50443), (657, 29713), (691, 28251), (2073, 9417), (3139, 6219)]