21186105

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{61409}}^1$

素因数の和:61440

約数の個数: 16

約数和(自身を含む): 35372160

約数和(自身を除く): 14186055

約数列:

[1, 3, 5, 15, 23, 69, 115, 345, 61409, 184227, 307045, 921135, 1412407, 4237221, 7062035, 21186105]

約数ペア:

[(1, 21186105), (3, 7062035), (5, 4237221), (15, 1412407), (23, 921135), (69, 307045), (115, 184227), (345, 61409)]