19178996848

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{1379387}}^1$

素因数の和:1379485

約数の個数: 40

約数和(自身を含む): 41050586880

約数和(自身を除く): 21871590032

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 79, 88, 158, 176, 316, 632, 869, 1264, 1738, 3476, 6952, 13904, 1379387, 2758774, 5517548, 11035096, 15173257, 22070192, 30346514, 60693028, 108971573, 121386056, 217943146, 242772112, 435886292, 871772584, 1198687303, 1743545168, 2397374606, 4794749212, 9589498424, 19178996848]

約数ペア:

[(1, 19178996848), (2, 9589498424), (4, 4794749212), (8, 2397374606), (11, 1743545168), (16, 1198687303), (22, 871772584), (44, 435886292), (79, 242772112), (88, 217943146), (158, 121386056), (176, 108971573), (316, 60693028), (632, 30346514), (869, 22070192), (1264, 15173257), (1738, 11035096), (3476, 5517548), (6952, 2758774), (13904, 1379387)]