19891952

素因数分解:

$2^4\times {\mathrm{1069}}^1\times {\mathrm{1163}}^1$

素因数の和:2240

約数の個数: 20

約数和(自身を含む): 38609880

約数和(自身を除く): 18717928

約数列:

[1, 2, 4, 8, 16, 1069, 1163, 2138, 2326, 4276, 4652, 8552, 9304, 17104, 18608, 1243247, 2486494, 4972988, 9945976, 19891952]

約数ペア:

[(1, 19891952), (2, 9945976), (4, 4972988), (8, 2486494), (16, 1243247), (1069, 18608), (1163, 17104), (2138, 9304), (2326, 8552), (4276, 4652)]