21711472

素因数分解:

$2^4\times {\mathrm{83}}^1\times {\mathrm{16349}}^1$

素因数の和:16440

約数の個数: 20

約数和(自身を含む): 42575400

約数和(自身を除く): 20863928

約数列:

[1, 2, 4, 8, 16, 83, 166, 332, 664, 1328, 16349, 32698, 65396, 130792, 261584, 1356967, 2713934, 5427868, 10855736, 21711472]

約数ペア:

[(1, 21711472), (2, 10855736), (4, 5427868), (8, 2713934), (16, 1356967), (83, 261584), (166, 130792), (332, 65396), (664, 32698), (1328, 16349)]