21660780

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{361013}}^1$

素因数の和:361025

約数の個数: 24

約数和(自身を含む): 60650352

約数和(自身を除く): 38989572

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 361013, 722026, 1083039, 1444052, 1805065, 2166078, 3610130, 4332156, 5415195, 7220260, 10830390, 21660780]

約数ペア:

[(1, 21660780), (2, 10830390), (3, 7220260), (4, 5415195), (5, 4332156), (6, 3610130), (10, 2166078), (12, 1805065), (15, 1444052), (20, 1083039), (30, 722026), (60, 361013)]