20669865

素因数分解:

$3^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{37243}}^1$

素因数の和:37288

約数の個数: 16

約数和(自身を含む): 33966528

約数和(自身を除く): 13296663

約数列:

[1, 3, 5, 15, 37, 111, 185, 555, 37243, 111729, 186215, 558645, 1377991, 4133973, 6889955, 20669865]

約数ペア:

[(1, 20669865), (3, 6889955), (5, 4133973), (15, 1377991), (37, 558645), (111, 186215), (185, 111729), (555, 37243)]