20289712

素因数分解:

$2^4\times {\mathrm{47}}^1\times {\mathrm{26981}}^1$

素因数の和:27036

約数の個数: 20

約数和(自身を含む): 40149216

約数和(自身を除く): 19859504

約数列:

[1, 2, 4, 8, 16, 47, 94, 188, 376, 752, 26981, 53962, 107924, 215848, 431696, 1268107, 2536214, 5072428, 10144856, 20289712]

約数ペア:

[(1, 20289712), (2, 10144856), (4, 5072428), (8, 2536214), (16, 1268107), (47, 431696), (94, 215848), (188, 107924), (376, 53962), (752, 26981)]