19520718

素因数分解:

$2^1\times 3^1\times 7^2\times {\mathrm{67}}^1\times {\mathrm{991}}^1$

素因数の和:1077

約数の個数: 48

約数和(自身を含む): 46139904

約数和(自身を除く): 26619186

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 49, 67, 98, 134, 147, 201, 294, 402, 469, 938, 991, 1407, 1982, 2814, 2973, 3283, 5946, 6566, 6937, 9849, 13874, 19698, 20811, 41622, 48559, 66397, 97118, 132794, 145677, 199191, 291354, 398382, 464779, 929558, 1394337, 2788674, 3253453, 6506906, 9760359, 19520718]

約数ペア:

[(1, 19520718), (2, 9760359), (3, 6506906), (6, 3253453), (7, 2788674), (14, 1394337), (21, 929558), (42, 464779), (49, 398382), (67, 291354), (98, 199191), (134, 145677), (147, 132794), (201, 97118), (294, 66397), (402, 48559), (469, 41622), (938, 20811), (991, 19698), (1407, 13874), (1982, 9849), (2814, 6937), (2973, 6566), (3283, 5946)]