21216496

素因数分解:

$2^4\times 7^1\times {\mathrm{189433}}^1$

素因数の和:189448

約数の個数: 20

約数和(自身を含む): 46979632

約数和(自身を除く): 25763136

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 189433, 378866, 757732, 1326031, 1515464, 2652062, 3030928, 5304124, 10608248, 21216496]

約数ペア:

[(1, 21216496), (2, 10608248), (4, 5304124), (7, 3030928), (8, 2652062), (14, 1515464), (16, 1326031), (28, 757732), (56, 378866), (112, 189433)]