18967221

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{23159}}^1$

素因数の和:23185

約数の個数: 24

約数和(自身を含む): 33720960

約数和(自身を除く): 14753739

約数列:

[1, 3, 7, 9, 13, 21, 39, 63, 91, 117, 273, 819, 23159, 69477, 162113, 208431, 301067, 486339, 903201, 1459017, 2107469, 2709603, 6322407, 18967221]

約数ペア:

[(1, 18967221), (3, 6322407), (7, 2709603), (9, 2107469), (13, 1459017), (21, 903201), (39, 486339), (63, 301067), (91, 208431), (117, 162113), (273, 69477), (819, 23159)]