31781943

素因数分解:

$3^3\times {\mathrm{59}}^1\times {\mathrm{71}}^1\times {\mathrm{281}}^1$

素因数の和:420

約数の個数: 32

約数和(自身を含む): 48729600

約数和(自身を除く): 16947657

約数列:

[1, 3, 9, 27, 59, 71, 177, 213, 281, 531, 639, 843, 1593, 1917, 2529, 4189, 7587, 12567, 16579, 19951, 37701, 49737, 59853, 113103, 149211, 179559, 447633, 538677, 1177109, 3531327, 10593981, 31781943]

約数ペア:

[(1, 31781943), (3, 10593981), (9, 3531327), (27, 1177109), (59, 538677), (71, 447633), (177, 179559), (213, 149211), (281, 113103), (531, 59853), (639, 49737), (843, 37701), (1593, 19951), (1917, 16579), (2529, 12567), (4189, 7587)]