21636412

素因数分解:

$2^2\times 7^1\times {\mathrm{449}}^1\times {\mathrm{1721}}^1$

素因数の和:2181

約数の個数: 24

約数和(自身を含む): 43394400

約数和(自身を除く): 21757988

約数列:

[1, 2, 4, 7, 14, 28, 449, 898, 1721, 1796, 3143, 3442, 6286, 6884, 12047, 12572, 24094, 48188, 772729, 1545458, 3090916, 5409103, 10818206, 21636412]

約数ペア:

[(1, 21636412), (2, 10818206), (4, 5409103), (7, 3090916), (14, 1545458), (28, 772729), (449, 48188), (898, 24094), (1721, 12572), (1796, 12047), (3143, 6884), (3442, 6286)]