21200284

素因数分解:

$2^2\times 7^1\times {\mathrm{103}}^1\times {\mathrm{7351}}^1$

素因数の和:7465

約数の個数: 24

約数和(自身を含む): 42818048

約数和(自身を除く): 21617764

約数列:

[1, 2, 4, 7, 14, 28, 103, 206, 412, 721, 1442, 2884, 7351, 14702, 29404, 51457, 102914, 205828, 757153, 1514306, 3028612, 5300071, 10600142, 21200284]

約数ペア:

[(1, 21200284), (2, 10600142), (4, 5300071), (7, 3028612), (14, 1514306), (28, 757153), (103, 205828), (206, 102914), (412, 51457), (721, 29404), (1442, 14702), (2884, 7351)]