21491030

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{6737}}^1$

素因数の和:6784

約数の個数: 32

約数和(自身を含む): 43662240

約数和(自身を除く): 22171210

約数列:

[1, 2, 5, 10, 11, 22, 29, 55, 58, 110, 145, 290, 319, 638, 1595, 3190, 6737, 13474, 33685, 67370, 74107, 148214, 195373, 370535, 390746, 741070, 976865, 1953730, 2149103, 4298206, 10745515, 21491030]

約数ペア:

[(1, 21491030), (2, 10745515), (5, 4298206), (10, 2149103), (11, 1953730), (22, 976865), (29, 741070), (55, 390746), (58, 370535), (110, 195373), (145, 148214), (290, 74107), (319, 67370), (638, 33685), (1595, 13474), (3190, 6737)]