21545236

素因数分解:

$2^2\times {\mathrm{43}}^1\times {\mathrm{229}}^1\times {\mathrm{547}}^1$

素因数の和:823

約数の個数: 24

約数和(自身を含む): 38820320

約数和(自身を除く): 17275084

約数列:

[1, 2, 4, 43, 86, 172, 229, 458, 547, 916, 1094, 2188, 9847, 19694, 23521, 39388, 47042, 94084, 125263, 250526, 501052, 5386309, 10772618, 21545236]

約数ペア:

[(1, 21545236), (2, 10772618), (4, 5386309), (43, 501052), (86, 250526), (172, 125263), (229, 94084), (458, 47042), (547, 39388), (916, 23521), (1094, 19694), (2188, 9847)]