18919521

素因数分解:

$3^3\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{877}}^1$

素因数の和:950

約数の個数: 32

約数和(自身を含む): 30343680

約数和(自身を除く): 11424159

約数列:

[1, 3, 9, 17, 27, 47, 51, 141, 153, 423, 459, 799, 877, 1269, 2397, 2631, 7191, 7893, 14909, 21573, 23679, 41219, 44727, 123657, 134181, 370971, 402543, 700723, 1112913, 2102169, 6306507, 18919521]

約数ペア:

[(1, 18919521), (3, 6306507), (9, 2102169), (17, 1112913), (27, 700723), (47, 402543), (51, 370971), (141, 134181), (153, 123657), (423, 44727), (459, 41219), (799, 23679), (877, 21573), (1269, 14909), (2397, 7893), (2631, 7191)]