201321808

素因数分解:

$2^4\times {\mathrm{41}}^1\times {\mathrm{306893}}^1$

素因数の和:306942

約数の個数: 20

約数和(自身を含む): 399575988

約数和(自身を除く): 198254180

約数列:

[1, 2, 4, 8, 16, 41, 82, 164, 328, 656, 306893, 613786, 1227572, 2455144, 4910288, 12582613, 25165226, 50330452, 100660904, 201321808]

約数ペア:

[(1, 201321808), (2, 100660904), (4, 50330452), (8, 25165226), (16, 12582613), (41, 4910288), (82, 2455144), (164, 1227572), (328, 613786), (656, 306893)]