19815579

素因数分解:

$3^2\times 7^1\times {\mathrm{151}}^1\times {\mathrm{2083}}^1$

素因数の和:2247

約数の個数: 24

約数和(自身を含む): 32943872

約数和(自身を除く): 13128293

約数列:

[1, 3, 7, 9, 21, 63, 151, 453, 1057, 1359, 2083, 3171, 6249, 9513, 14581, 18747, 43743, 131229, 314533, 943599, 2201731, 2830797, 6605193, 19815579]

約数ペア:

[(1, 19815579), (3, 6605193), (7, 2830797), (9, 2201731), (21, 943599), (63, 314533), (151, 131229), (453, 43743), (1057, 18747), (1359, 14581), (2083, 9513), (3171, 6249)]