78638259

素因数分解:

$3^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{107}}^1\times {\mathrm{443}}^1$

素因数の和:639

約数の個数: 32

約数和(自身を含む): 122757120

約数和(自身を除く): 44118861

約数列:

[1, 3, 7, 21, 79, 107, 237, 321, 443, 553, 749, 1329, 1659, 2247, 3101, 8453, 9303, 25359, 34997, 47401, 59171, 104991, 142203, 177513, 244979, 331807, 734937, 995421, 3744679, 11234037, 26212753, 78638259]

約数ペア:

[(1, 78638259), (3, 26212753), (7, 11234037), (21, 3744679), (79, 995421), (107, 734937), (237, 331807), (321, 244979), (443, 177513), (553, 142203), (749, 104991), (1329, 59171), (1659, 47401), (2247, 34997), (3101, 25359), (8453, 9303)]