21234320

素因数分解:

$2^4\times 5^1\times {\mathrm{433}}^1\times {\mathrm{613}}^1$

素因数の和:1059

約数の個数: 40

約数和(自身を含む): 49564536

約数和(自身を除く): 28330216

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 433, 613, 866, 1226, 1732, 2165, 2452, 3065, 3464, 4330, 4904, 6130, 6928, 8660, 9808, 12260, 17320, 24520, 34640, 49040, 265429, 530858, 1061716, 1327145, 2123432, 2654290, 4246864, 5308580, 10617160, 21234320]

約数ペア:

[(1, 21234320), (2, 10617160), (4, 5308580), (5, 4246864), (8, 2654290), (10, 2123432), (16, 1327145), (20, 1061716), (40, 530858), (80, 265429), (433, 49040), (613, 34640), (866, 24520), (1226, 17320), (1732, 12260), (2165, 9808), (2452, 8660), (3065, 6928), (3464, 6130), (4330, 4904)]