21287584

素因数分解:

$2^5\times {\mathrm{269}}^1\times {\mathrm{2473}}^1$

素因数の和:2752

約数の個数: 24

約数和(自身を含む): 42082740

約数和(自身を除く): 20795156

約数列:

[1, 2, 4, 8, 16, 32, 269, 538, 1076, 2152, 2473, 4304, 4946, 8608, 9892, 19784, 39568, 79136, 665237, 1330474, 2660948, 5321896, 10643792, 21287584]

約数ペア:

[(1, 21287584), (2, 10643792), (4, 5321896), (8, 2660948), (16, 1330474), (32, 665237), (269, 79136), (538, 39568), (1076, 19784), (2152, 9892), (2473, 8608), (4304, 4946)]