21653252

素因数分解:

$2^2\times {\mathrm{31}}^2\times {\mathrm{43}}^1\times {\mathrm{131}}^1$

素因数の和:240

約数の個数: 36

約数和(自身を含む): 40371408

約数和(自身を除く): 18718156

約数列:

[1, 2, 4, 31, 43, 62, 86, 124, 131, 172, 262, 524, 961, 1333, 1922, 2666, 3844, 4061, 5332, 5633, 8122, 11266, 16244, 22532, 41323, 82646, 125891, 165292, 174623, 251782, 349246, 503564, 698492, 5413313, 10826626, 21653252]

約数ペア:

[(1, 21653252), (2, 10826626), (4, 5413313), (31, 698492), (43, 503564), (62, 349246), (86, 251782), (124, 174623), (131, 165292), (172, 125891), (262, 82646), (524, 41323), (961, 22532), (1333, 16244), (1922, 11266), (2666, 8122), (3844, 5633), (4061, 5332)]