21268538

素因数分解:

$2^1\times {\mathrm{79}}^1\times {\mathrm{227}}^1\times {\mathrm{593}}^1$

素因数の和:901

約数の個数: 16

約数和(自身を含む): 32503680

約数和(自身を除く): 11235142

約数列:

[1, 2, 79, 158, 227, 454, 593, 1186, 17933, 35866, 46847, 93694, 134611, 269222, 10634269, 21268538]

約数ペア:

[(1, 21268538), (2, 10634269), (79, 269222), (158, 134611), (227, 93694), (454, 46847), (593, 35866), (1186, 17933)]