20732591

素因数分解:

${\mathrm{11}}^1\times {\mathrm{19}}^2\times {\mathrm{23}}^1\times {\mathrm{227}}^1$

素因数の和:299

約数の個数: 24

約数和(自身を含む): 25017984

約数和(自身を除く): 4285393

約数列:

[1, 11, 19, 23, 209, 227, 253, 361, 437, 2497, 3971, 4313, 4807, 5221, 8303, 47443, 57431, 81947, 91333, 99199, 901417, 1091189, 1884781, 20732591]

約数ペア:

[(1, 20732591), (11, 1884781), (19, 1091189), (23, 901417), (209, 99199), (227, 91333), (253, 81947), (361, 57431), (437, 47443), (2497, 8303), (3971, 5221), (4313, 4807)]