18713828

素因数分解:

$2^2\times 7^1\times {\mathrm{647}}^1\times {\mathrm{1033}}^1$

素因数の和:1691

約数の個数: 24

約数和(自身を含む): 37521792

約数和(自身を除く): 18807964

約数列:

[1, 2, 4, 7, 14, 28, 647, 1033, 1294, 2066, 2588, 4132, 4529, 7231, 9058, 14462, 18116, 28924, 668351, 1336702, 2673404, 4678457, 9356914, 18713828]

約数ペア:

[(1, 18713828), (2, 9356914), (4, 4678457), (7, 2673404), (14, 1336702), (28, 668351), (647, 28924), (1033, 18116), (1294, 14462), (2066, 9058), (2588, 7231), (4132, 4529)]