81315729

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{421}}^1\times {\mathrm{1951}}^1$

素因数の和:2389

約数の個数: 24

約数和(自身を含む): 128504064

約数和(自身を除く): 47188335

約数列:

[1, 3, 9, 11, 33, 99, 421, 1263, 1951, 3789, 4631, 5853, 13893, 17559, 21461, 41679, 64383, 193149, 821371, 2464113, 7392339, 9035081, 27105243, 81315729]

約数ペア:

[(1, 81315729), (3, 27105243), (9, 9035081), (11, 7392339), (33, 2464113), (99, 821371), (421, 193149), (1263, 64383), (1951, 41679), (3789, 21461), (4631, 17559), (5853, 13893)]