16720748

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{179}}^1\times {\mathrm{193}}^1$

素因数の和:398

約数の個数: 36

約数和(自身を含む): 32510520

約数和(自身を除く): 15789772

約数列:

[1, 2, 4, 11, 22, 44, 121, 179, 193, 242, 358, 386, 484, 716, 772, 1969, 2123, 3938, 4246, 7876, 8492, 21659, 23353, 34547, 43318, 46706, 69094, 86636, 93412, 138188, 380017, 760034, 1520068, 4180187, 8360374, 16720748]

約数ペア:

[(1, 16720748), (2, 8360374), (4, 4180187), (11, 1520068), (22, 760034), (44, 380017), (121, 138188), (179, 93412), (193, 86636), (242, 69094), (358, 46706), (386, 43318), (484, 34547), (716, 23353), (772, 21659), (1969, 8492), (2123, 7876), (3938, 4246)]