81724167

素因数分解:

$3^3\times 7^1\times {\mathrm{109}}^1\times {\mathrm{3967}}^1$

素因数の和:4092

約数の個数: 32

約数和(自身を含む): 139673600

約数和(自身を除く): 57949433

約数列:

[1, 3, 7, 9, 21, 27, 63, 109, 189, 327, 763, 981, 2289, 2943, 3967, 6867, 11901, 20601, 27769, 35703, 83307, 107109, 249921, 432403, 749763, 1297209, 3026821, 3891627, 9080463, 11674881, 27241389, 81724167]

約数ペア:

[(1, 81724167), (3, 27241389), (7, 11674881), (9, 9080463), (21, 3891627), (27, 3026821), (63, 1297209), (109, 749763), (189, 432403), (327, 249921), (763, 107109), (981, 83307), (2289, 35703), (2943, 27769), (3967, 20601), (6867, 11901)]