21837166

素因数分解:

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

素因数の和:157

約数の個数: 36

約数和(自身を含む): 37722888

約数和(自身を除く): 15885722

約数列:

[1, 2, 13, 23, 26, 46, 53, 106, 169, 299, 338, 598, 689, 1219, 1378, 2438, 2809, 3887, 5618, 7774, 8957, 15847, 17914, 31694, 36517, 64607, 73034, 129214, 206011, 412022, 474721, 839891, 949442, 1679782, 10918583, 21837166]

約数ペア:

[(1, 21837166), (2, 10918583), (13, 1679782), (23, 949442), (26, 839891), (46, 474721), (53, 412022), (106, 206011), (169, 129214), (299, 73034), (338, 64607), (598, 36517), (689, 31694), (1219, 17914), (1378, 15847), (2438, 8957), (2809, 7774), (3887, 5618)]