18540284

素因数分解:

$2^2\times 7^1\times {\mathrm{641}}^1\times {\mathrm{1033}}^1$

素因数の和:1685

約数の個数: 24

約数和(自身を含む): 37174368

約数和(自身を除く): 18634084

約数列:

[1, 2, 4, 7, 14, 28, 641, 1033, 1282, 2066, 2564, 4132, 4487, 7231, 8974, 14462, 17948, 28924, 662153, 1324306, 2648612, 4635071, 9270142, 18540284]

約数ペア:

[(1, 18540284), (2, 9270142), (4, 4635071), (7, 2648612), (14, 1324306), (28, 662153), (641, 28924), (1033, 17948), (1282, 14462), (2066, 8974), (2564, 7231), (4132, 4487)]