21054952

素因数分解:

$2^3\times {\mathrm{31}}^1\times {\mathrm{73}}^1\times {\mathrm{1163}}^1$

素因数の和:1273

約数の個数: 32

約数和(自身を含む): 41345280

約数和(自身を除く): 20290328

約数列:

[1, 2, 4, 8, 31, 62, 73, 124, 146, 248, 292, 584, 1163, 2263, 2326, 4526, 4652, 9052, 9304, 18104, 36053, 72106, 84899, 144212, 169798, 288424, 339596, 679192, 2631869, 5263738, 10527476, 21054952]

約数ペア:

[(1, 21054952), (2, 10527476), (4, 5263738), (8, 2631869), (31, 679192), (62, 339596), (73, 288424), (124, 169798), (146, 144212), (248, 84899), (292, 72106), (584, 36053), (1163, 18104), (2263, 9304), (2326, 9052), (4526, 4652)]