20090847

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{1171}}^1$

素因数の和:1243

約数の個数: 32

約数和(自身を含む): 33003520

約数和(自身を除く): 12912673

約数列:

[1, 3, 7, 19, 21, 43, 57, 129, 133, 301, 399, 817, 903, 1171, 2451, 3513, 5719, 8197, 17157, 22249, 24591, 50353, 66747, 151059, 155743, 352471, 467229, 956707, 1057413, 2870121, 6696949, 20090847]

約数ペア:

[(1, 20090847), (3, 6696949), (7, 2870121), (19, 1057413), (21, 956707), (43, 467229), (57, 352471), (129, 155743), (133, 151059), (301, 66747), (399, 50353), (817, 24591), (903, 22249), (1171, 17157), (2451, 8197), (3513, 5719)]