20508918

素因数分解:

$2^1\times 3^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{1553}}^1$

素因数の和:1660

約数の個数: 32

約数和(自身を含む): 42964992

約数和(自身を除く): 22456074

約数列:

[1, 2, 3, 6, 31, 62, 71, 93, 142, 186, 213, 426, 1553, 2201, 3106, 4402, 4659, 6603, 9318, 13206, 48143, 96286, 110263, 144429, 220526, 288858, 330789, 661578, 3418153, 6836306, 10254459, 20508918]

約数ペア:

[(1, 20508918), (2, 10254459), (3, 6836306), (6, 3418153), (31, 661578), (62, 330789), (71, 288858), (93, 220526), (142, 144429), (186, 110263), (213, 96286), (426, 48143), (1553, 13206), (2201, 9318), (3106, 6603), (4402, 4659)]