21005488508

素因数分解:

$2^2\times {\mathrm{41}}^1\times {\mathrm{953}}^1\times {\mathrm{134399}}^1$

素因数の和:135397

約数の個数: 24

約数和(自身を含む): 37695974400

約数和(自身を除く): 16690485892

約数列:

[1, 2, 4, 41, 82, 164, 953, 1906, 3812, 39073, 78146, 134399, 156292, 268798, 537596, 5510359, 11020718, 22041436, 128082247, 256164494, 512328988, 5251372127, 10502744254, 21005488508]

約数ペア:

[(1, 21005488508), (2, 10502744254), (4, 5251372127), (41, 512328988), (82, 256164494), (164, 128082247), (953, 22041436), (1906, 11020718), (3812, 5510359), (39073, 537596), (78146, 268798), (134399, 156292)]