18619088

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{839}}^1$

素因数の和:939

約数の個数: 40

約数和(自身を含む): 38539200

約数和(自身を除く): 19920112

約数列:

[1, 2, 4, 8, 16, 19, 38, 73, 76, 146, 152, 292, 304, 584, 839, 1168, 1387, 1678, 2774, 3356, 5548, 6712, 11096, 13424, 15941, 22192, 31882, 61247, 63764, 122494, 127528, 244988, 255056, 489976, 979952, 1163693, 2327386, 4654772, 9309544, 18619088]

約数ペア:

[(1, 18619088), (2, 9309544), (4, 4654772), (8, 2327386), (16, 1163693), (19, 979952), (38, 489976), (73, 255056), (76, 244988), (146, 127528), (152, 122494), (292, 63764), (304, 61247), (584, 31882), (839, 22192), (1168, 15941), (1387, 13424), (1678, 11096), (2774, 6712), (3356, 5548)]