19797424

素因数分解:

$2^4\times {\mathrm{41}}^1\times {\mathrm{103}}^1\times {\mathrm{293}}^1$

素因数の和:445

約数の個数: 40

約数和(自身を含む): 39809952

約数和(自身を除く): 20012528

約数列:

[1, 2, 4, 8, 16, 41, 82, 103, 164, 206, 293, 328, 412, 586, 656, 824, 1172, 1648, 2344, 4223, 4688, 8446, 12013, 16892, 24026, 30179, 33784, 48052, 60358, 67568, 96104, 120716, 192208, 241432, 482864, 1237339, 2474678, 4949356, 9898712, 19797424]

約数ペア:

[(1, 19797424), (2, 9898712), (4, 4949356), (8, 2474678), (16, 1237339), (41, 482864), (82, 241432), (103, 192208), (164, 120716), (206, 96104), (293, 67568), (328, 60358), (412, 48052), (586, 33784), (656, 30179), (824, 24026), (1172, 16892), (1648, 12013), (2344, 8446), (4223, 4688)]