21701624

素因数分解:

$2^3\times 7^1\times {\mathrm{387529}}^1$

素因数の和:387542

約数の個数: 16

約数和(自身を含む): 46503600

約数和(自身を除く): 24801976

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 387529, 775058, 1550116, 2712703, 3100232, 5425406, 10850812, 21701624]

約数ペア:

[(1, 21701624), (2, 10850812), (4, 5425406), (7, 3100232), (8, 2712703), (14, 1550116), (28, 775058), (56, 387529)]