19415188

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{457}}^1$

素因数の和:536

約数の個数: 48

約数和(自身を含む): 39497920

約数和(自身を除く): 20082732

約数列:

[1, 2, 4, 13, 19, 26, 38, 43, 52, 76, 86, 172, 247, 457, 494, 559, 817, 914, 988, 1118, 1634, 1828, 2236, 3268, 5941, 8683, 10621, 11882, 17366, 19651, 21242, 23764, 34732, 39302, 42484, 78604, 112879, 225758, 255463, 373369, 451516, 510926, 746738, 1021852, 1493476, 4853797, 9707594, 19415188]

約数ペア:

[(1, 19415188), (2, 9707594), (4, 4853797), (13, 1493476), (19, 1021852), (26, 746738), (38, 510926), (43, 451516), (52, 373369), (76, 255463), (86, 225758), (172, 112879), (247, 78604), (457, 42484), (494, 39302), (559, 34732), (817, 23764), (914, 21242), (988, 19651), (1118, 17366), (1634, 11882), (1828, 10621), (2236, 8683), (3268, 5941)]