20575143

素因数分解:

$3^2\times {\mathrm{47}}^1\times {\mathrm{127}}^1\times {\mathrm{383}}^1$

素因数の和:563

約数の個数: 24

約数和(自身を含む): 30670848

約数和(自身を除く): 10095705

約数列:

[1, 3, 9, 47, 127, 141, 381, 383, 423, 1143, 1149, 3447, 5969, 17907, 18001, 48641, 53721, 54003, 145923, 162009, 437769, 2286127, 6858381, 20575143]

約数ペア:

[(1, 20575143), (3, 6858381), (9, 2286127), (47, 437769), (127, 162009), (141, 145923), (381, 54003), (383, 53721), (423, 48641), (1143, 18001), (1149, 17907), (3447, 5969)]