28709709

素因数分解:

$3^1\times 7^1\times {\mathrm{89}}^1\times {\mathrm{15361}}^1$

素因数の和:15460

約数の個数: 16

約数和(自身を含む): 44242560

約数和(自身を除く): 15532851

約数列:

[1, 3, 7, 21, 89, 267, 623, 1869, 15361, 46083, 107527, 322581, 1367129, 4101387, 9569903, 28709709]

約数ペア:

[(1, 28709709), (3, 9569903), (7, 4101387), (21, 1367129), (89, 322581), (267, 107527), (623, 46083), (1869, 15361)]