21510664

素因数分解:

$2^3\times 7^1\times {\mathrm{43}}^1\times {\mathrm{8933}}^1$

素因数の和:8989

約数の個数: 32

約数和(自身を含む): 47171520

約数和(自身を除く): 25660856

約数列:

[1, 2, 4, 7, 8, 14, 28, 43, 56, 86, 172, 301, 344, 602, 1204, 2408, 8933, 17866, 35732, 62531, 71464, 125062, 250124, 384119, 500248, 768238, 1536476, 2688833, 3072952, 5377666, 10755332, 21510664]

約数ペア:

[(1, 21510664), (2, 10755332), (4, 5377666), (7, 3072952), (8, 2688833), (14, 1536476), (28, 768238), (43, 500248), (56, 384119), (86, 250124), (172, 125062), (301, 71464), (344, 62531), (602, 35732), (1204, 17866), (2408, 8933)]