21647948

素因数分解:

$2^2\times 7^1\times {\mathrm{223}}^1\times {\mathrm{3467}}^1$

素因数の和:3701

約数の個数: 24

約数和(自身を含む): 43502592

約数和(自身を除く): 21854644

約数列:

[1, 2, 4, 7, 14, 28, 223, 446, 892, 1561, 3122, 3467, 6244, 6934, 13868, 24269, 48538, 97076, 773141, 1546282, 3092564, 5411987, 10823974, 21647948]

約数ペア:

[(1, 21647948), (2, 10823974), (4, 5411987), (7, 3092564), (14, 1546282), (28, 773141), (223, 97076), (446, 48538), (892, 24269), (1561, 13868), (3122, 6934), (3467, 6244)]