200721969

素因数分解:

$3^4\times 7^1\times {\mathrm{354007}}^1$

素因数の和:354026

約数の個数: 20

約数和(自身を含む): 342679744

約数和(自身を除く): 141957775

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 567, 354007, 1062021, 2478049, 3186063, 7434147, 9558189, 22302441, 28674567, 66907323, 200721969]

約数ペア:

[(1, 200721969), (3, 66907323), (7, 28674567), (9, 22302441), (21, 9558189), (27, 7434147), (63, 3186063), (81, 2478049), (189, 1062021), (567, 354007)]