28706739

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{6899}}^1$

素因数の和:6994

約数の個数: 16

約数和(自身を含む): 40848000

約数和(自身を除く): 12141261

約数列:

[1, 3, 19, 57, 73, 219, 1387, 4161, 6899, 20697, 131081, 393243, 503627, 1510881, 9568913, 28706739]

約数ペア:

[(1, 28706739), (3, 9568913), (19, 1510881), (57, 503627), (73, 393243), (219, 131081), (1387, 20697), (4161, 6899)]