81988767

素因数分解:

$3^4\times 7^1\times {\mathrm{23}}^1\times {\mathrm{6287}}^1$

素因数の和:6329

約数の個数: 40

約数和(自身を含む): 146082816

約数和(自身を除く): 64094049

約数列:

[1, 3, 7, 9, 21, 23, 27, 63, 69, 81, 161, 189, 207, 483, 567, 621, 1449, 1863, 4347, 6287, 13041, 18861, 44009, 56583, 132027, 144601, 169749, 396081, 433803, 509247, 1012207, 1188243, 1301409, 3036621, 3564729, 3904227, 9109863, 11712681, 27329589, 81988767]

約数ペア:

[(1, 81988767), (3, 27329589), (7, 11712681), (9, 9109863), (21, 3904227), (23, 3564729), (27, 3036621), (63, 1301409), (69, 1188243), (81, 1012207), (161, 509247), (189, 433803), (207, 396081), (483, 169749), (567, 144601), (621, 132027), (1449, 56583), (1863, 44009), (4347, 18861), (6287, 13041)]