21736156

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{9721}}^1$

素因数の和:9781

約数の個数: 24

約数和(自身を含む): 41921264

約数和(自身を除く): 20185108

約数列:

[1, 2, 4, 13, 26, 43, 52, 86, 172, 559, 1118, 2236, 9721, 19442, 38884, 126373, 252746, 418003, 505492, 836006, 1672012, 5434039, 10868078, 21736156]

約数ペア:

[(1, 21736156), (2, 10868078), (4, 5434039), (13, 1672012), (26, 836006), (43, 505492), (52, 418003), (86, 252746), (172, 126373), (559, 38884), (1118, 19442), (2236, 9721)]