19018544

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{857}}^1$

素因数の和:957

約数の個数: 40

約数和(自身を含む): 39365040

約数和(自身を除く): 20346496

約数列:

[1, 2, 4, 8, 16, 19, 38, 73, 76, 146, 152, 292, 304, 584, 857, 1168, 1387, 1714, 2774, 3428, 5548, 6856, 11096, 13712, 16283, 22192, 32566, 62561, 65132, 125122, 130264, 250244, 260528, 500488, 1000976, 1188659, 2377318, 4754636, 9509272, 19018544]

約数ペア:

[(1, 19018544), (2, 9509272), (4, 4754636), (8, 2377318), (16, 1188659), (19, 1000976), (38, 500488), (73, 260528), (76, 250244), (146, 130264), (152, 125122), (292, 65132), (304, 62561), (584, 32566), (857, 22192), (1168, 16283), (1387, 13712), (1714, 11096), (2774, 6856), (3428, 5548)]