21276290

素因数分解:

$2^1\times 5^1\times 7^3\times {\mathrm{6203}}^1$

素因数の和:6231

約数の個数: 32

約数和(自身を含む): 44668800

約数和(自身を除く): 23392510

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 245, 343, 490, 686, 1715, 3430, 6203, 12406, 31015, 43421, 62030, 86842, 217105, 303947, 434210, 607894, 1519735, 2127629, 3039470, 4255258, 10638145, 21276290]

約数ペア:

[(1, 21276290), (2, 10638145), (5, 4255258), (7, 3039470), (10, 2127629), (14, 1519735), (35, 607894), (49, 434210), (70, 303947), (98, 217105), (245, 86842), (343, 62030), (490, 43421), (686, 31015), (1715, 12406), (3430, 6203)]