19328491

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{1597}}^1$

素因数の和:1643

約数の個数: 24

約数和(自身を含む): 25504080

約数和(自身を除く): 6175589

約数列:

[1, 7, 13, 19, 49, 91, 133, 247, 637, 931, 1597, 1729, 11179, 12103, 20761, 30343, 78253, 145327, 212401, 394459, 1017289, 1486807, 2761213, 19328491]

約数ペア:

[(1, 19328491), (7, 2761213), (13, 1486807), (19, 1017289), (49, 394459), (91, 212401), (133, 145327), (247, 78253), (637, 30343), (931, 20761), (1597, 12103), (1729, 11179)]