21303184

素因数分解:

$2^4\times 7^1\times {\mathrm{190207}}^1$

素因数の和:190222

約数の個数: 20

約数和(自身を含む): 47171584

約数和(自身を除く): 25868400

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 190207, 380414, 760828, 1331449, 1521656, 2662898, 3043312, 5325796, 10651592, 21303184]

約数ペア:

[(1, 21303184), (2, 10651592), (4, 5325796), (7, 3043312), (8, 2662898), (14, 1521656), (16, 1331449), (28, 760828), (56, 380414), (112, 190207)]