21208404

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{252481}}^1$

素因数の和:252495

約数の個数: 24

約数和(自身を含む): 56555968

約数和(自身を除く): 35347564

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 252481, 504962, 757443, 1009924, 1514886, 1767367, 3029772, 3534734, 5302101, 7069468, 10604202, 21208404]

約数ペア:

[(1, 21208404), (2, 10604202), (3, 7069468), (4, 5302101), (6, 3534734), (7, 3029772), (12, 1767367), (14, 1514886), (21, 1009924), (28, 757443), (42, 504962), (84, 252481)]