20814489

素因数分解:

$3^4\times {\mathrm{29}}^1\times {\mathrm{8861}}^1$

素因数の和:8902

約数の個数: 20

約数和(自身を含む): 32169060

約数和(自身を除く): 11354571

約数列:

[1, 3, 9, 27, 29, 81, 87, 261, 783, 2349, 8861, 26583, 79749, 239247, 256969, 717741, 770907, 2312721, 6938163, 20814489]

約数ペア:

[(1, 20814489), (3, 6938163), (9, 2312721), (27, 770907), (29, 717741), (81, 256969), (87, 239247), (261, 79749), (783, 26583), (2349, 8861)]