21065212

素因数分解:

$2^2\times 7^1\times {\mathrm{47}}^1\times {\mathrm{16007}}^1$

素因数の和:16065

約数の個数: 24

約数和(自身を含む): 43029504

約数和(自身を除く): 21964292

約数列:

[1, 2, 4, 7, 14, 28, 47, 94, 188, 329, 658, 1316, 16007, 32014, 64028, 112049, 224098, 448196, 752329, 1504658, 3009316, 5266303, 10532606, 21065212]

約数ペア:

[(1, 21065212), (2, 10532606), (4, 5266303), (7, 3009316), (14, 1504658), (28, 752329), (47, 448196), (94, 224098), (188, 112049), (329, 64028), (658, 32014), (1316, 16007)]