21145304

素因数分解:

$2^3\times {\mathrm{53}}^1\times {\mathrm{49871}}^1$

素因数の和:49930

約数の個数: 16

約数和(自身を含む): 40396320

約数和(自身を除く): 19251016

約数列:

[1, 2, 4, 8, 53, 106, 212, 424, 49871, 99742, 199484, 398968, 2643163, 5286326, 10572652, 21145304]

約数ペア:

[(1, 21145304), (2, 10572652), (4, 5286326), (8, 2643163), (53, 398968), (106, 199484), (212, 99742), (424, 49871)]