20710492

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{83}}^1\times {\mathrm{107}}^1$

素因数の和:258

約数の個数: 48

約数和(自身を含む): 41150592

約数和(自身を除く): 20440100

約数列:

[1, 2, 4, 11, 22, 44, 53, 83, 106, 107, 166, 212, 214, 332, 428, 583, 913, 1166, 1177, 1826, 2332, 2354, 3652, 4399, 4708, 5671, 8798, 8881, 11342, 17596, 17762, 22684, 35524, 48389, 62381, 96778, 97691, 124762, 193556, 195382, 249524, 390764, 470693, 941386, 1882772, 5177623, 10355246, 20710492]

約数ペア:

[(1, 20710492), (2, 10355246), (4, 5177623), (11, 1882772), (22, 941386), (44, 470693), (53, 390764), (83, 249524), (106, 195382), (107, 193556), (166, 124762), (212, 97691), (214, 96778), (332, 62381), (428, 48389), (583, 35524), (913, 22684), (1166, 17762), (1177, 17596), (1826, 11342), (2332, 8881), (2354, 8798), (3652, 5671), (4399, 4708)]