19681207

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{11383}}^1$

素因数の和:11422

約数の個数: 16

約数和(自身を含む): 25500160

約数和(自身を除く): 5818953

約数列:

[1, 7, 13, 19, 91, 133, 247, 1729, 11383, 79681, 147979, 216277, 1035853, 1513939, 2811601, 19681207]

約数ペア:

[(1, 19681207), (7, 2811601), (13, 1513939), (19, 1035853), (91, 216277), (133, 147979), (247, 79681), (1729, 11383)]