28986419

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{19813}}^1$

素因数の和:19850

約数の個数: 16

約数和(自身を含む): 38042880

約数和(自身を除く): 9056461

約数列:

[1, 7, 11, 19, 77, 133, 209, 1463, 19813, 138691, 217943, 376447, 1525601, 2635129, 4140917, 28986419]

約数ペア:

[(1, 28986419), (7, 4140917), (11, 2635129), (19, 1525601), (77, 376447), (133, 217943), (209, 138691), (1463, 19813)]