21435184

素因数分解:

$2^4\times {\mathrm{71}}^1\times {\mathrm{18869}}^1$

素因数の和:18948

約数の個数: 20

約数和(自身を含む): 42117840

約数和(自身を除く): 20682656

約数列:

[1, 2, 4, 8, 16, 71, 142, 284, 568, 1136, 18869, 37738, 75476, 150952, 301904, 1339699, 2679398, 5358796, 10717592, 21435184]

約数ペア:

[(1, 21435184), (2, 10717592), (4, 5358796), (8, 2679398), (16, 1339699), (71, 301904), (142, 150952), (284, 75476), (568, 37738), (1136, 18869)]