20188388

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{19949}}^1$

素因数の和:19987

約数の個数: 24

約数和(自身を含む): 40219200

約数和(自身を除く): 20030812

約数列:

[1, 2, 4, 11, 22, 23, 44, 46, 92, 253, 506, 1012, 19949, 39898, 79796, 219439, 438878, 458827, 877756, 917654, 1835308, 5047097, 10094194, 20188388]

約数ペア:

[(1, 20188388), (2, 10094194), (4, 5047097), (11, 1835308), (22, 917654), (23, 877756), (44, 458827), (46, 438878), (92, 219439), (253, 79796), (506, 39898), (1012, 19949)]