21000496947

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{131}}^1\times {\mathrm{2812441}}^1$

素因数の和:2812594

約数の個数: 16

約数和(自身を含む): 29699387520

約数和(自身を除く): 8698890573

約数列:

[1, 3, 19, 57, 131, 393, 2489, 7467, 2812441, 8437323, 53436379, 160309137, 368429771, 1105289313, 7000165649, 21000496947]

約数ペア:

[(1, 21000496947), (3, 7000165649), (19, 1105289313), (57, 368429771), (131, 160309137), (393, 53436379), (2489, 8437323), (7467, 2812441)]