18883473

素因数分解:

$3^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{6761}}^1$

素因数の和:6797

約数の個数: 24

約数和(自身を含む): 30834720

約数和(自身を除く): 11951247

約数列:

[1, 3, 7, 19, 21, 49, 57, 133, 147, 399, 931, 2793, 6761, 20283, 47327, 128459, 141981, 331289, 385377, 899213, 993867, 2697639, 6294491, 18883473]

約数ペア:

[(1, 18883473), (3, 6294491), (7, 2697639), (19, 993867), (21, 899213), (49, 385377), (57, 331289), (133, 141981), (147, 128459), (399, 47327), (931, 20283), (2793, 6761)]