81221672

素因数分解:

$2^3\times 7^1\times {\mathrm{1061}}^1\times {\mathrm{1367}}^1$

素因数の和:2441

約数の個数: 32

約数和(自身を含む): 174337920

約数和(自身を除く): 93116248

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 1061, 1367, 2122, 2734, 4244, 5468, 7427, 8488, 9569, 10936, 14854, 19138, 29708, 38276, 59416, 76552, 1450387, 2900774, 5801548, 10152709, 11603096, 20305418, 40610836, 81221672]

約数ペア:

[(1, 81221672), (2, 40610836), (4, 20305418), (7, 11603096), (8, 10152709), (14, 5801548), (28, 2900774), (56, 1450387), (1061, 76552), (1367, 59416), (2122, 38276), (2734, 29708), (4244, 19138), (5468, 14854), (7427, 10936), (8488, 9569)]