21664784

素因数分解:

$2^4\times {\mathrm{31}}^2\times {\mathrm{1409}}^1$

素因数の和:1479

約数の個数: 30

約数和(自身を含む): 43404030

約数和(自身を除く): 21739246

約数列:

[1, 2, 4, 8, 16, 31, 62, 124, 248, 496, 961, 1409, 1922, 2818, 3844, 5636, 7688, 11272, 15376, 22544, 43679, 87358, 174716, 349432, 698864, 1354049, 2708098, 5416196, 10832392, 21664784]

約数ペア:

[(1, 21664784), (2, 10832392), (4, 5416196), (8, 2708098), (16, 1354049), (31, 698864), (62, 349432), (124, 174716), (248, 87358), (496, 43679), (961, 22544), (1409, 15376), (1922, 11272), (2818, 7688), (3844, 5636)]