21339126

素因数分解:

$2^1\times 3^4\times {\mathrm{157}}^1\times {\mathrm{839}}^1$

素因数の和:1010

約数の個数: 40

約数和(自身を含む): 48177360

約数和(自身を除く): 26838234

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 81, 157, 162, 314, 471, 839, 942, 1413, 1678, 2517, 2826, 4239, 5034, 7551, 8478, 12717, 15102, 22653, 25434, 45306, 67959, 131723, 135918, 263446, 395169, 790338, 1185507, 2371014, 3556521, 7113042, 10669563, 21339126]

約数ペア:

[(1, 21339126), (2, 10669563), (3, 7113042), (6, 3556521), (9, 2371014), (18, 1185507), (27, 790338), (54, 395169), (81, 263446), (157, 135918), (162, 131723), (314, 67959), (471, 45306), (839, 25434), (942, 22653), (1413, 15102), (1678, 12717), (2517, 8478), (2826, 7551), (4239, 5034)]