19015504

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{881}}^1$

素因数の和:979

約数の個数: 40

約数和(自身を含む): 39372480

約数和(自身を除く): 20356976

約数列:

[1, 2, 4, 8, 16, 19, 38, 71, 76, 142, 152, 284, 304, 568, 881, 1136, 1349, 1762, 2698, 3524, 5396, 7048, 10792, 14096, 16739, 21584, 33478, 62551, 66956, 125102, 133912, 250204, 267824, 500408, 1000816, 1188469, 2376938, 4753876, 9507752, 19015504]

約数ペア:

[(1, 19015504), (2, 9507752), (4, 4753876), (8, 2376938), (16, 1188469), (19, 1000816), (38, 500408), (71, 267824), (76, 250204), (142, 133912), (152, 125102), (284, 66956), (304, 62551), (568, 33478), (881, 21584), (1136, 16739), (1349, 14096), (1762, 10792), (2698, 7048), (3524, 5396)]