21191128

素因数分解:

$2^3\times 7^2\times {\mathrm{54059}}^1$

素因数の和:54079

約数の個数: 24

約数和(自身を含む): 46221300

約数和(自身を除く): 25030172

約数列:

[1, 2, 4, 7, 8, 14, 28, 49, 56, 98, 196, 392, 54059, 108118, 216236, 378413, 432472, 756826, 1513652, 2648891, 3027304, 5297782, 10595564, 21191128]

約数ペア:

[(1, 21191128), (2, 10595564), (4, 5297782), (7, 3027304), (8, 2648891), (14, 1513652), (28, 756826), (49, 432472), (56, 378413), (98, 216236), (196, 108118), (392, 54059)]