81396621

素因数分解:

$3^2\times {\mathrm{47}}^1\times {\mathrm{337}}^1\times {\mathrm{571}}^1$

素因数の和:961

約数の個数: 24

約数和(自身を含む): 120641664

約数和(自身を除く): 39245043

約数列:

[1, 3, 9, 47, 141, 337, 423, 571, 1011, 1713, 3033, 5139, 15839, 26837, 47517, 80511, 142551, 192427, 241533, 577281, 1731843, 9044069, 27132207, 81396621]

約数ペア:

[(1, 81396621), (3, 27132207), (9, 9044069), (47, 1731843), (141, 577281), (337, 241533), (423, 192427), (571, 142551), (1011, 80511), (1713, 47517), (3033, 26837), (5139, 15839)]