21452739

素因数分解:

$3^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{13267}}^1$

素因数の和:13295

約数の個数: 24

約数和(自身を含む): 36301248

約数和(自身を除く): 14848509

約数列:

[1, 3, 7, 11, 21, 33, 49, 77, 147, 231, 539, 1617, 13267, 39801, 92869, 145937, 278607, 437811, 650083, 1021559, 1950249, 3064677, 7150913, 21452739]

約数ペア:

[(1, 21452739), (3, 7150913), (7, 3064677), (11, 1950249), (21, 1021559), (33, 650083), (49, 437811), (77, 278607), (147, 145937), (231, 92869), (539, 39801), (1617, 13267)]