21028688

素因数分解:

$2^4\times {\mathrm{587}}^1\times {\mathrm{2239}}^1$

素因数の和:2834

約数の個数: 20

約数和(自身を含む): 40830720

約数和(自身を除く): 19802032

約数列:

[1, 2, 4, 8, 16, 587, 1174, 2239, 2348, 4478, 4696, 8956, 9392, 17912, 35824, 1314293, 2628586, 5257172, 10514344, 21028688]

約数ペア:

[(1, 21028688), (2, 10514344), (4, 5257172), (8, 2628586), (16, 1314293), (587, 35824), (1174, 17912), (2239, 9392), (2348, 8956), (4478, 4696)]