21271782

素因数分解:

$2^1\times 3^1\times 7^2\times {\mathrm{72353}}^1$

素因数の和:72372

約数の個数: 24

約数和(自身を含む): 49490136

約数和(自身を除く): 28218354

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 49, 98, 147, 294, 72353, 144706, 217059, 434118, 506471, 1012942, 1519413, 3038826, 3545297, 7090594, 10635891, 21271782]

約数ペア:

[(1, 21271782), (2, 10635891), (3, 7090594), (6, 3545297), (7, 3038826), (14, 1519413), (21, 1012942), (42, 506471), (49, 434118), (98, 217059), (147, 144706), (294, 72353)]