21147424

素因数分解:

$2^5\times {\mathrm{37}}^1\times {\mathrm{53}}^1\times {\mathrm{337}}^1$

素因数の和:437

約数の個数: 48

約数和(自身を含む): 43695288

約数和(自身を除く): 22547864

約数列:

[1, 2, 4, 8, 16, 32, 37, 53, 74, 106, 148, 212, 296, 337, 424, 592, 674, 848, 1184, 1348, 1696, 1961, 2696, 3922, 5392, 7844, 10784, 12469, 15688, 17861, 24938, 31376, 35722, 49876, 62752, 71444, 99752, 142888, 199504, 285776, 399008, 571552, 660857, 1321714, 2643428, 5286856, 10573712, 21147424]

約数ペア:

[(1, 21147424), (2, 10573712), (4, 5286856), (8, 2643428), (16, 1321714), (32, 660857), (37, 571552), (53, 399008), (74, 285776), (106, 199504), (148, 142888), (212, 99752), (296, 71444), (337, 62752), (424, 49876), (592, 35722), (674, 31376), (848, 24938), (1184, 17861), (1348, 15688), (1696, 12469), (1961, 10784), (2696, 7844), (3922, 5392)]