21749398

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{811}}^1$

素因数の和:900

約数の個数: 32

約数和(自身を含む): 37884672

約数和(自身を除く): 16135274

約数列:

[1, 2, 11, 22, 23, 46, 53, 106, 253, 506, 583, 811, 1166, 1219, 1622, 2438, 8921, 13409, 17842, 18653, 26818, 37306, 42983, 85966, 205183, 410366, 472813, 945626, 988609, 1977218, 10874699, 21749398]

約数ペア:

[(1, 21749398), (2, 10874699), (11, 1977218), (22, 988609), (23, 945626), (46, 472813), (53, 410366), (106, 205183), (253, 85966), (506, 42983), (583, 37306), (811, 26818), (1166, 18653), (1219, 17842), (1622, 13409), (2438, 8921)]