28945189

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{16741}}^1$

素因数の和:16780

約数の個数: 16

約数和(自身を含む): 37502080

約数和(自身を除く): 8556891

約数列:

[1, 7, 13, 19, 91, 133, 247, 1729, 16741, 117187, 217633, 318079, 1523431, 2226553, 4135027, 28945189]

約数ペア:

[(1, 28945189), (7, 4135027), (13, 2226553), (19, 1523431), (91, 318079), (133, 217633), (247, 117187), (1729, 16741)]