21647756

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{211}}^1\times {\mathrm{1973}}^1$

素因数の和:2201

約数の個数: 24

約数和(自身を含む): 41011824

約数和(自身を除く): 19364068

約数列:

[1, 2, 4, 13, 26, 52, 211, 422, 844, 1973, 2743, 3946, 5486, 7892, 10972, 25649, 51298, 102596, 416303, 832606, 1665212, 5411939, 10823878, 21647756]

約数ペア:

[(1, 21647756), (2, 10823878), (4, 5411939), (13, 1665212), (26, 832606), (52, 416303), (211, 102596), (422, 51298), (844, 25649), (1973, 10972), (2743, 7892), (3946, 5486)]