21039284

素因数分解:

$2^2\times 7^1\times {\mathrm{467}}^1\times {\mathrm{1609}}^1$

素因数の和:2087

約数の個数: 24

約数和(自身を含む): 42194880

約数和(自身を除く): 21155596

約数列:

[1, 2, 4, 7, 14, 28, 467, 934, 1609, 1868, 3218, 3269, 6436, 6538, 11263, 13076, 22526, 45052, 751403, 1502806, 3005612, 5259821, 10519642, 21039284]

約数ペア:

[(1, 21039284), (2, 10519642), (4, 5259821), (7, 3005612), (14, 1502806), (28, 751403), (467, 45052), (934, 22526), (1609, 13076), (1868, 11263), (3218, 6538), (3269, 6436)]