21992824

素因数分解:

$2^3\times 7^1\times {\mathrm{607}}^1\times {\mathrm{647}}^1$

素因数の和:1267

約数の個数: 32

約数和(自身を含む): 47278080

約数和(自身を除く): 25285256

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 607, 647, 1214, 1294, 2428, 2588, 4249, 4529, 4856, 5176, 8498, 9058, 16996, 18116, 33992, 36232, 392729, 785458, 1570916, 2749103, 3141832, 5498206, 10996412, 21992824]

約数ペア:

[(1, 21992824), (2, 10996412), (4, 5498206), (7, 3141832), (8, 2749103), (14, 1570916), (28, 785458), (56, 392729), (607, 36232), (647, 33992), (1214, 18116), (1294, 16996), (2428, 9058), (2588, 8498), (4249, 5176), (4529, 4856)]