28894761

素因数分解:

$3^2\times 7^2\times {\mathrm{65521}}^1$

素因数の和:65541

約数の個数: 18

約数和(自身を含む): 48551802

約数和(自身を除く): 19657041

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 441, 65521, 196563, 458647, 589689, 1375941, 3210529, 4127823, 9631587, 28894761]

約数ペア:

[(1, 28894761), (3, 9631587), (7, 4127823), (9, 3210529), (21, 1375941), (49, 589689), (63, 458647), (147, 196563), (441, 65521)]