80721489

素因数分解:

$3^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{10987}}^1$

素因数の和:11100

約数の個数: 16

約数和(自身を含む): 112517120

約数和(自身を除く): 31795631

約数列:

[1, 3, 31, 79, 93, 237, 2449, 7347, 10987, 32961, 340597, 867973, 1021791, 2603919, 26907163, 80721489]

約数ペア:

[(1, 80721489), (3, 26907163), (31, 2603919), (79, 1021791), (93, 867973), (237, 340597), (2449, 32961), (7347, 10987)]