21392320

素因数分解:

$2^6\times 5^1\times {\mathrm{66851}}^1$

素因数の和:66868

約数の個数: 28

約数和(自身を含む): 50941224

約数和(自身を除く): 29548904

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 66851, 133702, 267404, 334255, 534808, 668510, 1069616, 1337020, 2139232, 2674040, 4278464, 5348080, 10696160, 21392320]

約数ペア:

[(1, 21392320), (2, 10696160), (4, 5348080), (5, 4278464), (8, 2674040), (10, 2139232), (16, 1337020), (20, 1069616), (32, 668510), (40, 534808), (64, 334255), (80, 267404), (160, 133702), (320, 66851)]