19897497

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{2767}}^1$

素因数の和:2837

約数の個数: 24

約数和(自身を含む): 31090176

約数和(自身を除く): 11192679

約数列:

[1, 3, 9, 17, 47, 51, 141, 153, 423, 799, 2397, 2767, 7191, 8301, 24903, 47039, 130049, 141117, 390147, 423351, 1170441, 2210833, 6632499, 19897497]

約数ペア:

[(1, 19897497), (3, 6632499), (9, 2210833), (17, 1170441), (47, 423351), (51, 390147), (141, 141117), (153, 130049), (423, 47039), (799, 24903), (2397, 8301), (2767, 7191)]