81903927

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{233}}^1\times {\mathrm{881}}^1$

素因数の和:1143

約数の個数: 32

約数和(自身を含む): 132088320

約数和(自身を除く): 50184393

約数列:

[1, 3, 7, 19, 21, 57, 133, 233, 399, 699, 881, 1631, 2643, 4427, 4893, 6167, 13281, 16739, 18501, 30989, 50217, 92967, 117173, 205273, 351519, 615819, 1436911, 3900187, 4310733, 11700561, 27301309, 81903927]

約数ペア:

[(1, 81903927), (3, 27301309), (7, 11700561), (19, 4310733), (21, 3900187), (57, 1436911), (133, 615819), (233, 351519), (399, 205273), (699, 117173), (881, 92967), (1631, 50217), (2643, 30989), (4427, 18501), (4893, 16739), (6167, 13281)]