21281372

素因数分解:

$2^2\times 7^1\times {\mathrm{149}}^1\times {\mathrm{5101}}^1$

素因数の和:5261

約数の個数: 24

約数和(自身を含む): 42856800

約数和(自身を除く): 21575428

約数列:

[1, 2, 4, 7, 14, 28, 149, 298, 596, 1043, 2086, 4172, 5101, 10202, 20404, 35707, 71414, 142828, 760049, 1520098, 3040196, 5320343, 10640686, 21281372]

約数ペア:

[(1, 21281372), (2, 10640686), (4, 5320343), (7, 3040196), (14, 1520098), (28, 760049), (149, 142828), (298, 71414), (596, 35707), (1043, 20404), (2086, 10202), (4172, 5101)]