19491687

素因数分解:

$3^2\times {\mathrm{41}}^1\times {\mathrm{101}}^1\times {\mathrm{523}}^1$

素因数の和:671

約数の個数: 24

約数和(自身を含む): 29182608

約数和(自身を除く): 9690921

約数列:

[1, 3, 9, 41, 101, 123, 303, 369, 523, 909, 1569, 4141, 4707, 12423, 21443, 37269, 52823, 64329, 158469, 192987, 475407, 2165743, 6497229, 19491687]

約数ペア:

[(1, 19491687), (3, 6497229), (9, 2165743), (41, 475407), (101, 192987), (123, 158469), (303, 64329), (369, 52823), (523, 37269), (909, 21443), (1569, 12423), (4141, 4707)]