21136845

素因数分解:

$3^1\times 5^1\times {\mathrm{79}}^1\times {\mathrm{17837}}^1$

素因数の和:17924

約数の個数: 16

約数和(自身を含む): 34248960

約数和(自身を除く): 13112115

約数列:

[1, 3, 5, 15, 79, 237, 395, 1185, 17837, 53511, 89185, 267555, 1409123, 4227369, 7045615, 21136845]

約数ペア:

[(1, 21136845), (3, 7045615), (5, 4227369), (15, 1409123), (79, 267555), (237, 89185), (395, 53511), (1185, 17837)]