21159103

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{6917}}^1$

素因数の和:6966

約数の個数: 16

約数和(自身を含む): 26565120

約数和(自身を除く): 5406017

約数列:

[1, 7, 19, 23, 133, 161, 437, 3059, 6917, 48419, 131423, 159091, 919961, 1113637, 3022729, 21159103]

約数ペア:

[(1, 21159103), (7, 3022729), (19, 1113637), (23, 919961), (133, 159091), (161, 131423), (437, 48419), (3059, 6917)]