21893705

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{307}}^1\times {\mathrm{839}}^1$

素因数の和:1168

約数の個数: 16

約数和(自身を含む): 27941760

約数和(自身を除く): 6048055

約数列:

[1, 5, 17, 85, 307, 839, 1535, 4195, 5219, 14263, 26095, 71315, 257573, 1287865, 4378741, 21893705]

約数ペア:

[(1, 21893705), (5, 4378741), (17, 1287865), (85, 257573), (307, 71315), (839, 26095), (1535, 14263), (4195, 5219)]