19867887

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{3613}}^1$

素因数の和:3679

約数の個数: 24

約数和(自身を含む): 31571904

約数和(自身を除く): 11704017

約数列:

[1, 3, 9, 13, 39, 47, 117, 141, 423, 611, 1833, 3613, 5499, 10839, 32517, 46969, 140907, 169811, 422721, 509433, 1528299, 2207543, 6622629, 19867887]

約数ペア:

[(1, 19867887), (3, 6622629), (9, 2207543), (13, 1528299), (39, 509433), (47, 422721), (117, 169811), (141, 140907), (423, 46969), (611, 32517), (1833, 10839), (3613, 5499)]