20511331365

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{1405367}}^1$

素因数の和:1405521

約数の個数: 32

約数和(自身を含む): 37776291840

約数和(自身を除く): 17264960475

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 139, 417, 695, 973, 2085, 2919, 4865, 14595, 1405367, 4216101, 7026835, 9837569, 21080505, 29512707, 49187845, 147563535, 195346013, 586038039, 976730065, 1367422091, 2930190195, 4102266273, 6837110455, 20511331365]

約数ペア:

[(1, 20511331365), (3, 6837110455), (5, 4102266273), (7, 2930190195), (15, 1367422091), (21, 976730065), (35, 586038039), (105, 195346013), (139, 147563535), (417, 49187845), (695, 29512707), (973, 21080505), (2085, 9837569), (2919, 7026835), (4865, 4216101), (14595, 1405367)]