21183980

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{28627}}^1$

素因数の和:28673

約数の個数: 24

約数和(自身を含む): 45690288

約数和(自身を除く): 24506308

約数列:

[1, 2, 4, 5, 10, 20, 37, 74, 148, 185, 370, 740, 28627, 57254, 114508, 143135, 286270, 572540, 1059199, 2118398, 4236796, 5295995, 10591990, 21183980]

約数ペア:

[(1, 21183980), (2, 10591990), (4, 5295995), (5, 4236796), (10, 2118398), (20, 1059199), (37, 572540), (74, 286270), (148, 143135), (185, 114508), (370, 57254), (740, 28627)]