20608521

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{107}}^1\times {\mathrm{109}}^1$

素因数の和:269

約数の個数: 32

約数和(自身を含む): 30412800

約数和(自身を除く): 9804279

約数列:

[1, 3, 19, 31, 57, 93, 107, 109, 321, 327, 589, 1767, 2033, 2071, 3317, 3379, 6099, 6213, 9951, 10137, 11663, 34989, 63023, 64201, 189069, 192603, 221597, 361553, 664791, 1084659, 6869507, 20608521]

約数ペア:

[(1, 20608521), (3, 6869507), (19, 1084659), (31, 664791), (57, 361553), (93, 221597), (107, 192603), (109, 189069), (321, 64201), (327, 63023), (589, 34989), (1767, 11663), (2033, 10137), (2071, 9951), (3317, 6213), (3379, 6099)]