81472671

素因数分解:

$3^2\times 7^1\times {\mathrm{331}}^1\times {\mathrm{3907}}^1$

素因数の和:4251

約数の個数: 24

約数和(自身を含む): 134935424

約数和(自身を除く): 53462753

約数列:

[1, 3, 7, 9, 21, 63, 331, 993, 2317, 2979, 3907, 6951, 11721, 20853, 27349, 35163, 82047, 246141, 1293217, 3879651, 9052519, 11638953, 27157557, 81472671]

約数ペア:

[(1, 81472671), (3, 27157557), (7, 11638953), (9, 9052519), (21, 3879651), (63, 1293217), (331, 246141), (993, 82047), (2317, 35163), (2979, 27349), (3907, 20853), (6951, 11721)]