21947156

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{71257}}^1$

素因数の和:71279

約数の個数: 24

約数和(自身を含む): 47885376

約数和(自身を除く): 25938220

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 77, 154, 308, 71257, 142514, 285028, 498799, 783827, 997598, 1567654, 1995196, 3135308, 5486789, 10973578, 21947156]

約数ペア:

[(1, 21947156), (2, 10973578), (4, 5486789), (7, 3135308), (11, 1995196), (14, 1567654), (22, 997598), (28, 783827), (44, 498799), (77, 285028), (154, 142514), (308, 71257)]