21387110

素因数分解:

$2^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{57803}}^1$

素因数の和:57847

約数の個数: 16

約数和(自身を含む): 39537936

約数和(自身を除く): 18150826

約数列:

[1, 2, 5, 10, 37, 74, 185, 370, 57803, 115606, 289015, 578030, 2138711, 4277422, 10693555, 21387110]

約数ペア:

[(1, 21387110), (2, 10693555), (5, 4277422), (10, 2138711), (37, 578030), (74, 289015), (185, 115606), (370, 57803)]