20701833

素因数分解:

$3^1\times {\mathrm{37}}^1\times {\mathrm{421}}^1\times {\mathrm{443}}^1$

素因数の和:904

約数の個数: 16

約数和(自身を含む): 28479936

約数和(自身を除く): 7778103

約数列:

[1, 3, 37, 111, 421, 443, 1263, 1329, 15577, 16391, 46731, 49173, 186503, 559509, 6900611, 20701833]

約数ペア:

[(1, 20701833), (3, 6900611), (37, 559509), (111, 186503), (421, 49173), (443, 46731), (1263, 16391), (1329, 15577)]