21132377

素因数分解:

$7^2\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{1103}}^1$

素因数の和:1157

約数の個数: 24

約数和(自身を含む): 27184896

約数和(自身を除く): 6052519

約数列:

[1, 7, 17, 23, 49, 119, 161, 391, 833, 1103, 1127, 2737, 7721, 18751, 19159, 25369, 54047, 131257, 177583, 431273, 918799, 1243081, 3018911, 21132377]

約数ペア:

[(1, 21132377), (7, 3018911), (17, 1243081), (23, 918799), (49, 431273), (119, 177583), (161, 131257), (391, 54047), (833, 25369), (1103, 19159), (1127, 18751), (2737, 7721)]