21182308

素因数分解:

$2^2\times 7^3\times {\mathrm{15439}}^1$

素因数の和:15464

約数の個数: 24

約数和(自身を含む): 43232000

約数和(自身を除く): 22049692

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 343, 686, 1372, 15439, 30878, 61756, 108073, 216146, 432292, 756511, 1513022, 3026044, 5295577, 10591154, 21182308]

約数ペア:

[(1, 21182308), (2, 10591154), (4, 5295577), (7, 3026044), (14, 1513022), (28, 756511), (49, 432292), (98, 216146), (196, 108073), (343, 61756), (686, 30878), (1372, 15439)]