21538097

素因数分解:

$7^2\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{659}}^1$

素因数の和:725

約数の個数: 24

約数和(自身を含む): 27086400

約数和(自身を除く): 5548303

約数列:

[1, 7, 23, 29, 49, 161, 203, 659, 667, 1127, 1421, 4613, 4669, 15157, 19111, 32291, 32683, 106099, 133777, 439553, 742693, 936439, 3076871, 21538097]

約数ペア:

[(1, 21538097), (7, 3076871), (23, 936439), (29, 742693), (49, 439553), (161, 133777), (203, 106099), (659, 32683), (667, 32291), (1127, 19111), (1421, 15157), (4613, 4669)]