81335961

素因数分解:

$3^3\times 7^1\times {\mathrm{337}}^1\times {\mathrm{1277}}^1$

素因数の和:1630

約数の個数: 32

約数和(自身を含む): 138228480

約数和(自身を除く): 56892519

約数列:

[1, 3, 7, 9, 21, 27, 63, 189, 337, 1011, 1277, 2359, 3033, 3831, 7077, 8939, 9099, 11493, 21231, 26817, 34479, 63693, 80451, 241353, 430349, 1291047, 3012443, 3873141, 9037329, 11619423, 27111987, 81335961]

約数ペア:

[(1, 81335961), (3, 27111987), (7, 11619423), (9, 9037329), (21, 3873141), (27, 3012443), (63, 1291047), (189, 430349), (337, 241353), (1011, 80451), (1277, 63693), (2359, 34479), (3033, 26817), (3831, 21231), (7077, 11493), (8939, 9099)]