18811976

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{5381}}^1$

素因数の和:5429

約数の個数: 32

約数和(自身を含む): 38750400

約数和(自身を除く): 19938424

約数列:

[1, 2, 4, 8, 19, 23, 38, 46, 76, 92, 152, 184, 437, 874, 1748, 3496, 5381, 10762, 21524, 43048, 102239, 123763, 204478, 247526, 408956, 495052, 817912, 990104, 2351497, 4702994, 9405988, 18811976]

約数ペア:

[(1, 18811976), (2, 9405988), (4, 4702994), (8, 2351497), (19, 990104), (23, 817912), (38, 495052), (46, 408956), (76, 247526), (92, 204478), (152, 123763), (184, 102239), (437, 43048), (874, 21524), (1748, 10762), (3496, 5381)]