21031153

素因数分解:

${\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{2411}}^1$

素因数の和:2496

約数の個数: 16

約数和(自身を含む): 25123392

約数和(自身を除く): 4092239

約数列:

[1, 11, 13, 61, 143, 671, 793, 2411, 8723, 26521, 31343, 147071, 344773, 1617781, 1911923, 21031153]

約数ペア:

[(1, 21031153), (11, 1911923), (13, 1617781), (61, 344773), (143, 147071), (671, 31343), (793, 26521), (2411, 8723)]