21206912

素因数分解:

$2^7\times {\mathrm{43}}^1\times {\mathrm{3853}}^1$

素因数の和:3910

約数の個数: 32

約数和(自身を含む): 43241880

約数和(自身を除く): 22034968

約数列:

[1, 2, 4, 8, 16, 32, 43, 64, 86, 128, 172, 344, 688, 1376, 2752, 3853, 5504, 7706, 15412, 30824, 61648, 123296, 165679, 246592, 331358, 493184, 662716, 1325432, 2650864, 5301728, 10603456, 21206912]

約数ペア:

[(1, 21206912), (2, 10603456), (4, 5301728), (8, 2650864), (16, 1325432), (32, 662716), (43, 493184), (64, 331358), (86, 246592), (128, 165679), (172, 123296), (344, 61648), (688, 30824), (1376, 15412), (2752, 7706), (3853, 5504)]