21231694

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{131}}^1\times {\mathrm{139}}^1$

素因数の和:336

約数の個数: 32

約数和(自身を含む): 35925120

約数和(自身を除く): 14693426

約数列:

[1, 2, 11, 22, 53, 106, 131, 139, 262, 278, 583, 1166, 1441, 1529, 2882, 3058, 6943, 7367, 13886, 14734, 18209, 36418, 76373, 81037, 152746, 162074, 200299, 400598, 965077, 1930154, 10615847, 21231694]

約数ペア:

[(1, 21231694), (2, 10615847), (11, 1930154), (22, 965077), (53, 400598), (106, 200299), (131, 162074), (139, 152746), (262, 81037), (278, 76373), (583, 36418), (1166, 18209), (1441, 14734), (1529, 13886), (2882, 7367), (3058, 6943)]