21573320

素因数分解:

$2^3\times 5^1\times {\mathrm{79}}^1\times {\mathrm{6827}}^1$

素因数の和:6917

約数の個数: 32

約数和(自身を含む): 49161600

約数和(自身を除く): 27588280

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 79, 158, 316, 395, 632, 790, 1580, 3160, 6827, 13654, 27308, 34135, 54616, 68270, 136540, 273080, 539333, 1078666, 2157332, 2696665, 4314664, 5393330, 10786660, 21573320]

約数ペア:

[(1, 21573320), (2, 10786660), (4, 5393330), (5, 4314664), (8, 2696665), (10, 2157332), (20, 1078666), (40, 539333), (79, 273080), (158, 136540), (316, 68270), (395, 54616), (632, 34135), (790, 27308), (1580, 13654), (3160, 6827)]