21273409

素因数分解:

${\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{1091}}^1$

素因数の和:1176

約数の個数: 16

約数和(自身を含む): 23901696

約数和(自身を除く): 2628287

約数列:

[1, 17, 31, 37, 527, 629, 1091, 1147, 18547, 19499, 33821, 40367, 574957, 686239, 1251377, 21273409]

約数ペア:

[(1, 21273409), (17, 1251377), (31, 686239), (37, 574957), (527, 40367), (629, 33821), (1091, 19499), (1147, 18547)]