21182121

素因数分解:

$3^3\times {\mathrm{59}}^1\times {\mathrm{13297}}^1$

素因数の和:13365

約数の個数: 16

約数和(自身を含む): 31915200

約数和(自身を除く): 10733079

約数列:

[1, 3, 9, 27, 59, 177, 531, 1593, 13297, 39891, 119673, 359019, 784523, 2353569, 7060707, 21182121]

約数ペア:

[(1, 21182121), (3, 7060707), (9, 2353569), (27, 784523), (59, 359019), (177, 119673), (531, 39891), (1593, 13297)]