21002408

素因数分解:

$2^3\times 7^1\times {\mathrm{375043}}^1$

素因数の和:375056

約数の個数: 16

約数和(自身を含む): 45005280

約数和(自身を除く): 24002872

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 375043, 750086, 1500172, 2625301, 3000344, 5250602, 10501204, 21002408]

約数ペア:

[(1, 21002408), (2, 10501204), (4, 5250602), (7, 3000344), (8, 2625301), (14, 1500172), (28, 750086), (56, 375043)]