81559521

素因数分解:

$3^3\times {\mathrm{79}}^1\times {\mathrm{38237}}^1$

素因数の和:38325

約数の個数: 16

約数和(自身を含む): 122361600

約数和(自身を除く): 40802079

約数列:

[1, 3, 9, 27, 79, 237, 711, 2133, 38237, 114711, 344133, 1032399, 3020723, 9062169, 27186507, 81559521]

約数ペア:

[(1, 81559521), (3, 27186507), (9, 9062169), (27, 3020723), (79, 1032399), (237, 344133), (711, 114711), (2133, 38237)]