21053620

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{150383}}^1$

素因数の和:150399

約数の個数: 24

約数和(自身を含む): 50529024

約数和(自身を除く): 29475404

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 150383, 300766, 601532, 751915, 1052681, 1503830, 2105362, 3007660, 4210724, 5263405, 10526810, 21053620]

約数ペア:

[(1, 21053620), (2, 10526810), (4, 5263405), (5, 4210724), (7, 3007660), (10, 2105362), (14, 1503830), (20, 1052681), (28, 751915), (35, 601532), (70, 300766), (140, 150383)]