20613271

素因数分解:

$7^3\times {\mathrm{19}}^1\times {\mathrm{3163}}^1$

素因数の和:3203

約数の個数: 16

約数和(自身を含む): 25312000

約数和(自身を除く): 4698729

約数列:

[1, 7, 19, 49, 133, 343, 931, 3163, 6517, 22141, 60097, 154987, 420679, 1084909, 2944753, 20613271]

約数ペア:

[(1, 20613271), (7, 2944753), (19, 1084909), (49, 420679), (133, 154987), (343, 60097), (931, 22141), (3163, 6517)]