19512639

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{2153}}^1$

素因数の和:2231

約数の個数: 24

約数和(自身を含む): 30242160

約数和(自身を除く): 10729521

約数列:

[1, 3, 9, 19, 53, 57, 159, 171, 477, 1007, 2153, 3021, 6459, 9063, 19377, 40907, 114109, 122721, 342327, 368163, 1026981, 2168071, 6504213, 19512639]

約数ペア:

[(1, 19512639), (3, 6504213), (9, 2168071), (19, 1026981), (53, 368163), (57, 342327), (159, 122721), (171, 114109), (477, 40907), (1007, 19377), (2153, 9063), (3021, 6459)]