21919976

素因数分解:

$2^3\times {\mathrm{13}}^2\times {\mathrm{31}}^1\times {\mathrm{523}}^1$

素因数の和:586

約数の個数: 48

約数和(自身を含む): 46028160

約数和(自身を除く): 24108184

約数列:

[1, 2, 4, 8, 13, 26, 31, 52, 62, 104, 124, 169, 248, 338, 403, 523, 676, 806, 1046, 1352, 1612, 2092, 3224, 4184, 5239, 6799, 10478, 13598, 16213, 20956, 27196, 32426, 41912, 54392, 64852, 88387, 129704, 176774, 210769, 353548, 421538, 707096, 843076, 1686152, 2739997, 5479994, 10959988, 21919976]

約数ペア:

[(1, 21919976), (2, 10959988), (4, 5479994), (8, 2739997), (13, 1686152), (26, 843076), (31, 707096), (52, 421538), (62, 353548), (104, 210769), (124, 176774), (169, 129704), (248, 88387), (338, 64852), (403, 54392), (523, 41912), (676, 32426), (806, 27196), (1046, 20956), (1352, 16213), (1612, 13598), (2092, 10478), (3224, 6799), (4184, 5239)]