19882179

素因数分解:

$3^4\times {\mathrm{389}}^1\times {\mathrm{631}}^1$

素因数の和:1032

約数の個数: 20

約数和(自身を含む): 29824080

約数和(自身を除く): 9941901

約数列:

[1, 3, 9, 27, 81, 389, 631, 1167, 1893, 3501, 5679, 10503, 17037, 31509, 51111, 245459, 736377, 2209131, 6627393, 19882179]

約数ペア:

[(1, 19882179), (3, 6627393), (9, 2209131), (27, 736377), (81, 245459), (389, 51111), (631, 31509), (1167, 17037), (1893, 10503), (3501, 5679)]