21904544

素因数分解:

$2^5\times {\mathrm{43}}^1\times {\mathrm{15919}}^1$

素因数の和:15972

約数の個数: 24

約数和(自身を含む): 44130240

約数和(自身を除く): 22225696

約数列:

[1, 2, 4, 8, 16, 32, 43, 86, 172, 344, 688, 1376, 15919, 31838, 63676, 127352, 254704, 509408, 684517, 1369034, 2738068, 5476136, 10952272, 21904544]

約数ペア:

[(1, 21904544), (2, 10952272), (4, 5476136), (8, 2738068), (16, 1369034), (32, 684517), (43, 509408), (86, 254704), (172, 127352), (344, 63676), (688, 31838), (1376, 15919)]