21361756

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{337}}^1$

素因数の和:430

約数の個数: 48

約数和(自身を含む): 42928704

約数和(自身を除く): 21566948

約数列:

[1, 2, 4, 13, 23, 26, 46, 52, 53, 92, 106, 212, 299, 337, 598, 674, 689, 1196, 1219, 1348, 1378, 2438, 2756, 4381, 4876, 7751, 8762, 15502, 15847, 17524, 17861, 31004, 31694, 35722, 63388, 71444, 100763, 201526, 232193, 403052, 410803, 464386, 821606, 928772, 1643212, 5340439, 10680878, 21361756]

約数ペア:

[(1, 21361756), (2, 10680878), (4, 5340439), (13, 1643212), (23, 928772), (26, 821606), (46, 464386), (52, 410803), (53, 403052), (92, 232193), (106, 201526), (212, 100763), (299, 71444), (337, 63388), (598, 35722), (674, 31694), (689, 31004), (1196, 17861), (1219, 17524), (1348, 15847), (1378, 15502), (2438, 8762), (2756, 7751), (4381, 4876)]