28907216

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{138977}}^1$

素因数の和:138998

約数の個数: 20

約数和(自身を含む): 60316452

約数和(自身を除く): 31409236

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 138977, 277954, 555908, 1111816, 1806701, 2223632, 3613402, 7226804, 14453608, 28907216]

約数ペア:

[(1, 28907216), (2, 14453608), (4, 7226804), (8, 3613402), (13, 2223632), (16, 1806701), (26, 1111816), (52, 555908), (104, 277954), (208, 138977)]