21580496

素因数分解:

$2^4\times 7^1\times {\mathrm{43}}^1\times {\mathrm{4481}}^1$

素因数の和:4539

約数の個数: 40

約数和(自身を含む): 48907584

約数和(自身を除く): 27327088

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 43, 56, 86, 112, 172, 301, 344, 602, 688, 1204, 2408, 4481, 4816, 8962, 17924, 31367, 35848, 62734, 71696, 125468, 192683, 250936, 385366, 501872, 770732, 1348781, 1541464, 2697562, 3082928, 5395124, 10790248, 21580496]

約数ペア:

[(1, 21580496), (2, 10790248), (4, 5395124), (7, 3082928), (8, 2697562), (14, 1541464), (16, 1348781), (28, 770732), (43, 501872), (56, 385366), (86, 250936), (112, 192683), (172, 125468), (301, 71696), (344, 62734), (602, 35848), (688, 31367), (1204, 17924), (2408, 8962), (4481, 4816)]