18641876

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{59}}^1\times {\mathrm{167}}^1$

素因数の和:284

約数の個数: 48

約数和(自身を含む): 37255680

約数和(自身を除く): 18613804

約数列:

[1, 2, 4, 11, 22, 43, 44, 59, 86, 118, 167, 172, 236, 334, 473, 649, 668, 946, 1298, 1837, 1892, 2537, 2596, 3674, 5074, 7181, 7348, 9853, 10148, 14362, 19706, 27907, 28724, 39412, 55814, 78991, 108383, 111628, 157982, 216766, 315964, 423679, 433532, 847358, 1694716, 4660469, 9320938, 18641876]

約数ペア:

[(1, 18641876), (2, 9320938), (4, 4660469), (11, 1694716), (22, 847358), (43, 433532), (44, 423679), (59, 315964), (86, 216766), (118, 157982), (167, 111628), (172, 108383), (236, 78991), (334, 55814), (473, 39412), (649, 28724), (668, 27907), (946, 19706), (1298, 14362), (1837, 10148), (1892, 9853), (2537, 7348), (2596, 7181), (3674, 5074)]