21504784

素因数分解:

$2^4\times 7^1\times {\mathrm{192007}}^1$

素因数の和:192022

約数の個数: 20

約数和(自身を含む): 47617984

約数和(自身を除く): 26113200

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 192007, 384014, 768028, 1344049, 1536056, 2688098, 3072112, 5376196, 10752392, 21504784]

約数ペア:

[(1, 21504784), (2, 10752392), (4, 5376196), (7, 3072112), (8, 2688098), (14, 1536056), (16, 1344049), (28, 768028), (56, 384014), (112, 192007)]