20800179

素因数分解:

$3^3\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{443}}^1$

素因数の和:536

約数の個数: 32

約数和(自身を含む): 32394240

約数和(自身を除く): 11594061

約数列:

[1, 3, 9, 27, 37, 47, 111, 141, 333, 423, 443, 999, 1269, 1329, 1739, 3987, 5217, 11961, 15651, 16391, 20821, 46953, 49173, 62463, 147519, 187389, 442557, 562167, 770377, 2311131, 6933393, 20800179]

約数ペア:

[(1, 20800179), (3, 6933393), (9, 2311131), (27, 770377), (37, 562167), (47, 442557), (111, 187389), (141, 147519), (333, 62463), (423, 49173), (443, 46953), (999, 20821), (1269, 16391), (1329, 15651), (1739, 11961), (3987, 5217)]