21237184

素因数分解:

$2^6\times {\mathrm{43}}^1\times {\mathrm{7717}}^1$

素因数の和:7772

約数の個数: 28

約数和(自身を含む): 43128184

約数和(自身を除く): 21891000

約数列:

[1, 2, 4, 8, 16, 32, 43, 64, 86, 172, 344, 688, 1376, 2752, 7717, 15434, 30868, 61736, 123472, 246944, 331831, 493888, 663662, 1327324, 2654648, 5309296, 10618592, 21237184]

約数ペア:

[(1, 21237184), (2, 10618592), (4, 5309296), (8, 2654648), (16, 1327324), (32, 663662), (43, 493888), (64, 331831), (86, 246944), (172, 123472), (344, 61736), (688, 30868), (1376, 15434), (2752, 7717)]