21609236

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{131}}^1\times {\mathrm{163}}^1$

素因数の和:332

約数の個数: 48

約数和(自身を含む): 43642368

約数和(自身を除く): 22033132

約数列:

[1, 2, 4, 11, 22, 23, 44, 46, 92, 131, 163, 253, 262, 326, 506, 524, 652, 1012, 1441, 1793, 2882, 3013, 3586, 3749, 5764, 6026, 7172, 7498, 12052, 14996, 21353, 33143, 41239, 42706, 66286, 82478, 85412, 132572, 164956, 234883, 469766, 491119, 939532, 982238, 1964476, 5402309, 10804618, 21609236]

約数ペア:

[(1, 21609236), (2, 10804618), (4, 5402309), (11, 1964476), (22, 982238), (23, 939532), (44, 491119), (46, 469766), (92, 234883), (131, 164956), (163, 132572), (253, 85412), (262, 82478), (326, 66286), (506, 42706), (524, 41239), (652, 33143), (1012, 21353), (1441, 14996), (1793, 12052), (2882, 7498), (3013, 7172), (3586, 6026), (3749, 5764)]