21643664

素因数分解:

$2^4\times 7^1\times {\mathrm{193247}}^1$

素因数の和:193262

約数の個数: 20

約数和(自身を含む): 47925504

約数和(自身を除く): 26281840

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 193247, 386494, 772988, 1352729, 1545976, 2705458, 3091952, 5410916, 10821832, 21643664]

約数ペア:

[(1, 21643664), (2, 10821832), (4, 5410916), (7, 3091952), (8, 2705458), (14, 1545976), (16, 1352729), (28, 772988), (56, 386494), (112, 193247)]