21979664

素因数分解:

$2^4\times 7^1\times {\mathrm{196247}}^1$

素因数の和:196262

約数の個数: 20

約数和(自身を含む): 48669504

約数和(自身を除く): 26689840

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 196247, 392494, 784988, 1373729, 1569976, 2747458, 3139952, 5494916, 10989832, 21979664]

約数ペア:

[(1, 21979664), (2, 10989832), (4, 5494916), (7, 3139952), (8, 2747458), (14, 1569976), (16, 1373729), (28, 784988), (56, 392494), (112, 196247)]