201812821

素因数分解:

$7^2\times {\mathrm{31}}^1\times {\mathrm{132859}}^1$

素因数の和:132904

約数の個数: 12

約数和(自身を含む): 242336640

約数和(自身を除く): 40523819

約数列:

[1, 7, 31, 49, 217, 1519, 132859, 930013, 4118629, 6510091, 28830403, 201812821]

約数ペア:

[(1, 201812821), (7, 28830403), (31, 6510091), (49, 4118629), (217, 930013), (1519, 132859)]