21558008

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{141829}}^1$

素因数の和:141854

約数の個数: 16

約数和(自身を含む): 42549000

約数和(自身を除く): 20990992

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 141829, 283658, 567316, 1134632, 2694751, 5389502, 10779004, 21558008]

約数ペア:

[(1, 21558008), (2, 10779004), (4, 5389502), (8, 2694751), (19, 1134632), (38, 567316), (76, 283658), (152, 141829)]