21826475

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{139}}^1\times {\mathrm{571}}^1$

素因数の和:731

約数の個数: 24

約数和(自身を含む): 29789760

約数和(自身を除く): 7963285

約数列:

[1, 5, 11, 25, 55, 139, 275, 571, 695, 1529, 2855, 3475, 6281, 7645, 14275, 31405, 38225, 79369, 157025, 396845, 873059, 1984225, 4365295, 21826475]

約数ペア:

[(1, 21826475), (5, 4365295), (11, 1984225), (25, 873059), (55, 396845), (139, 157025), (275, 79369), (571, 38225), (695, 31405), (1529, 14275), (2855, 7645), (3475, 6281)]