30781387

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^2\times {\mathrm{937}}^1$

素因数の和:995

約数の個数: 24

約数和(自身を含む): 40026336

約数和(自身を除く): 9244949

約数列:

[1, 7, 13, 19, 91, 133, 247, 361, 937, 1729, 2527, 4693, 6559, 12181, 17803, 32851, 85267, 124621, 231439, 338257, 1620073, 2367799, 4397341, 30781387]

約数ペア:

[(1, 30781387), (7, 4397341), (13, 2367799), (19, 1620073), (91, 338257), (133, 231439), (247, 124621), (361, 85267), (937, 32851), (1729, 17803), (2527, 12181), (4693, 6559)]