18871732

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{439}}^1\times {\mathrm{977}}^1$

素因数の和:1431

約数の個数: 24

約数和(自身を含む): 36146880

約数和(自身を除く): 17275148

約数列:

[1, 2, 4, 11, 22, 44, 439, 878, 977, 1756, 1954, 3908, 4829, 9658, 10747, 19316, 21494, 42988, 428903, 857806, 1715612, 4717933, 9435866, 18871732]

約数ペア:

[(1, 18871732), (2, 9435866), (4, 4717933), (11, 1715612), (22, 857806), (44, 428903), (439, 42988), (878, 21494), (977, 19316), (1756, 10747), (1954, 9658), (3908, 4829)]