21311512

素因数分解:

$2^3\times {\mathrm{53}}^1\times {\mathrm{50263}}^1$

素因数の和:50322

約数の個数: 16

約数和(自身を含む): 40713840

約数和(自身を除く): 19402328

約数列:

[1, 2, 4, 8, 53, 106, 212, 424, 50263, 100526, 201052, 402104, 2663939, 5327878, 10655756, 21311512]

約数ペア:

[(1, 21311512), (2, 10655756), (4, 5327878), (8, 2663939), (53, 402104), (106, 201052), (212, 100526), (424, 50263)]