21259460

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{28729}}^1$

素因数の和:28775

約数の個数: 24

約数和(自身を含む): 45853080

約数和(自身を除く): 24593620

約数列:

[1, 2, 4, 5, 10, 20, 37, 74, 148, 185, 370, 740, 28729, 57458, 114916, 143645, 287290, 574580, 1062973, 2125946, 4251892, 5314865, 10629730, 21259460]

約数ペア:

[(1, 21259460), (2, 10629730), (4, 5314865), (5, 4251892), (10, 2125946), (20, 1062973), (37, 574580), (74, 287290), (148, 143645), (185, 114916), (370, 57458), (740, 28729)]