203640423

素因数分解:

$3^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{72911}}^1$

素因数の和:72947

約数の個数: 24

約数和(自身を含む): 332478720

約数和(自身を除く): 128838297

約数列:

[1, 3, 7, 19, 21, 49, 57, 133, 147, 399, 931, 2793, 72911, 218733, 510377, 1385309, 1531131, 3572639, 4155927, 9697163, 10717917, 29091489, 67880141, 203640423]

約数ペア:

[(1, 203640423), (3, 67880141), (7, 29091489), (19, 10717917), (21, 9697163), (49, 4155927), (57, 3572639), (133, 1531131), (147, 1385309), (399, 510377), (931, 218733), (2793, 72911)]