20459973

素因数分解:

$3^1\times {\mathrm{79}}^1\times {\mathrm{131}}^1\times {\mathrm{659}}^1$

素因数の和:872

約数の個数: 16

約数和(自身を含む): 27878400

約数和(自身を除く): 7418427

約数列:

[1, 3, 79, 131, 237, 393, 659, 1977, 10349, 31047, 52061, 86329, 156183, 258987, 6819991, 20459973]

約数ペア:

[(1, 20459973), (3, 6819991), (79, 258987), (131, 156183), (237, 86329), (393, 52061), (659, 31047), (1977, 10349)]