20488569

素因数分解:

$3^1\times {\mathrm{47}}^1\times {\mathrm{331}}^1\times {\mathrm{439}}^1$

素因数の和:820

約数の個数: 16

約数和(自身を含む): 28047360

約数和(自身を除く): 7558791

約数列:

[1, 3, 47, 141, 331, 439, 993, 1317, 15557, 20633, 46671, 61899, 145309, 435927, 6829523, 20488569]

約数ペア:

[(1, 20488569), (3, 6829523), (47, 435927), (141, 145309), (331, 61899), (439, 46671), (993, 20633), (1317, 15557)]