18950823

素因数分解:

$3^2\times {\mathrm{47}}^1\times {\mathrm{71}}^1\times {\mathrm{631}}^1$

素因数の和:755

約数の個数: 24

約数和(自身を含む): 28394496

約数和(自身を除く): 9443673

約数列:

[1, 3, 9, 47, 71, 141, 213, 423, 631, 639, 1893, 3337, 5679, 10011, 29657, 30033, 44801, 88971, 134403, 266913, 403209, 2105647, 6316941, 18950823]

約数ペア:

[(1, 18950823), (3, 6316941), (9, 2105647), (47, 403209), (71, 266913), (141, 134403), (213, 88971), (423, 44801), (631, 30033), (639, 29657), (1893, 10011), (3337, 5679)]