12870221

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{233}}^1\times {\mathrm{607}}^1$

素因数の和:860

約数の個数: 16

約数和(自身を含む): 15934464

約数和(自身を除く): 3064243

約数列:

[1, 7, 13, 91, 233, 607, 1631, 3029, 4249, 7891, 21203, 55237, 141431, 990017, 1838603, 12870221]

約数ペア:

[(1, 12870221), (7, 1838603), (13, 990017), (91, 141431), (233, 55237), (607, 21203), (1631, 7891), (3029, 4249)]