20999218689

素因数分解:

$3^2\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{569}}^1\times {\mathrm{2029}}^1$

素因数の和:2694

約数の個数: 48

約数和(自身を含む): 31769337600

約数和(自身を除く): 10770118911

約数列:

[1, 3, 9, 43, 47, 129, 141, 387, 423, 569, 1707, 2021, 2029, 5121, 6063, 6087, 18189, 18261, 24467, 26743, 73401, 80229, 87247, 95363, 220203, 240687, 261741, 286089, 785223, 858267, 1149949, 1154501, 3449847, 3463503, 4100609, 10349541, 10390509, 12301827, 36905481, 49643543, 54261547, 148930629, 162784641, 446791887, 488353923, 2333246521, 6999739563, 20999218689]

約数ペア:

[(1, 20999218689), (3, 6999739563), (9, 2333246521), (43, 488353923), (47, 446791887), (129, 162784641), (141, 148930629), (387, 54261547), (423, 49643543), (569, 36905481), (1707, 12301827), (2021, 10390509), (2029, 10349541), (5121, 4100609), (6063, 3463503), (6087, 3449847), (18189, 1154501), (18261, 1149949), (24467, 858267), (26743, 785223), (73401, 286089), (80229, 261741), (87247, 240687), (95363, 220203)]