19868528

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{65357}}^1$

素因数の和:65384

約数の個数: 20

約数和(自身を含む): 40521960

約数和(自身を除く): 20653432

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 65357, 130714, 261428, 522856, 1045712, 1241783, 2483566, 4967132, 9934264, 19868528]

約数ペア:

[(1, 19868528), (2, 9934264), (4, 4967132), (8, 2483566), (16, 1241783), (19, 1045712), (38, 522856), (76, 261428), (152, 130714), (304, 65357)]