19540197

素因数分解:

$3^4\times {\mathrm{317}}^1\times {\mathrm{761}}^1$

素因数の和:1090

約数の個数: 20

約数和(自身を含む): 29320236

約数和(自身を除く): 9780039

約数列:

[1, 3, 9, 27, 81, 317, 761, 951, 2283, 2853, 6849, 8559, 20547, 25677, 61641, 241237, 723711, 2171133, 6513399, 19540197]

約数ペア:

[(1, 19540197), (3, 6513399), (9, 2171133), (27, 723711), (81, 241237), (317, 61641), (761, 25677), (951, 20547), (2283, 8559), (2853, 6849)]