21398538238

素因数分解:

$2^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{19850221}}^1$

素因数の和:19850248

約数の個数: 24

約数和(自身を含む): 40732655544

約数和(自身を除く): 19334117306

約数列:

[1, 2, 7, 11, 14, 22, 49, 77, 98, 154, 539, 1078, 19850221, 39700442, 138951547, 218352431, 277903094, 436704862, 972660829, 1528467017, 1945321658, 3056934034, 10699269119, 21398538238]

約数ペア:

[(1, 21398538238), (2, 10699269119), (7, 3056934034), (11, 1945321658), (14, 1528467017), (22, 972660829), (49, 436704862), (77, 277903094), (98, 218352431), (154, 138951547), (539, 39700442), (1078, 19850221)]