21661320

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{180511}}^1$

素因数の和:180525

約数の個数: 32

約数和(自身を含む): 64984320

約数和(自身を除く): 43323000

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 180511, 361022, 541533, 722044, 902555, 1083066, 1444088, 1805110, 2166132, 2707665, 3610220, 4332264, 5415330, 7220440, 10830660, 21661320]

約数ペア:

[(1, 21661320), (2, 10830660), (3, 7220440), (4, 5415330), (5, 4332264), (6, 3610220), (8, 2707665), (10, 2166132), (12, 1805110), (15, 1444088), (20, 1083066), (24, 902555), (30, 722044), (40, 541533), (60, 361022), (120, 180511)]