20152161

素因数分解:

$3^2\times {\mathrm{37}}^1\times {\mathrm{73}}^1\times {\mathrm{829}}^1$

素因数の和:945

約数の個数: 24

約数和(自身を含む): 30341480

約数和(自身を除く): 10189319

約数列:

[1, 3, 9, 37, 73, 111, 219, 333, 657, 829, 2487, 2701, 7461, 8103, 24309, 30673, 60517, 92019, 181551, 276057, 544653, 2239129, 6717387, 20152161]

約数ペア:

[(1, 20152161), (3, 6717387), (9, 2239129), (37, 544653), (73, 276057), (111, 181551), (219, 92019), (333, 60517), (657, 30673), (829, 24309), (2487, 8103), (2701, 7461)]