13121235

素因数分解:

$3^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{6781}}^1$

素因数の和:6835

約数の個数: 24

約数和(自身を含む): 23275824

約数和(自身を除く): 10154589

約数列:

[1, 3, 5, 9, 15, 43, 45, 129, 215, 387, 645, 1935, 6781, 20343, 33905, 61029, 101715, 291583, 305145, 874749, 1457915, 2624247, 4373745, 13121235]

約数ペア:

[(1, 13121235), (3, 4373745), (5, 2624247), (9, 1457915), (15, 874749), (43, 305145), (45, 291583), (129, 101715), (215, 61029), (387, 33905), (645, 20343), (1935, 6781)]