21851055

素因数分解:

$3^2\times 5^1\times {\mathrm{617}}^1\times {\mathrm{787}}^1$

素因数の和:1415

約数の個数: 24

約数和(自身を含む): 37984752

約数和(自身を除く): 16133697

約数列:

[1, 3, 5, 9, 15, 45, 617, 787, 1851, 2361, 3085, 3935, 5553, 7083, 9255, 11805, 27765, 35415, 485579, 1456737, 2427895, 4370211, 7283685, 21851055]

約数ペア:

[(1, 21851055), (3, 7283685), (5, 4370211), (9, 2427895), (15, 1456737), (45, 485579), (617, 35415), (787, 27765), (1851, 11805), (2361, 9255), (3085, 7083), (3935, 5553)]