21996784

素因数分解:

$2^4\times {\mathrm{619}}^1\times {\mathrm{2221}}^1$

素因数の和:2848

約数の個数: 20

約数和(自身を含む): 42706840

約数和(自身を除く): 20710056

約数列:

[1, 2, 4, 8, 16, 619, 1238, 2221, 2476, 4442, 4952, 8884, 9904, 17768, 35536, 1374799, 2749598, 5499196, 10998392, 21996784]

約数ペア:

[(1, 21996784), (2, 10998392), (4, 5499196), (8, 2749598), (16, 1374799), (619, 35536), (1238, 17768), (2221, 9904), (2476, 8884), (4442, 4952)]