25913853

素因数分解:

$3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{21649}}^1$

素因数の和:21681

約数の個数: 24

約数和(自身を含む): 45032000

約数和(自身を除く): 19118147

約数列:

[1, 3, 7, 9, 19, 21, 57, 63, 133, 171, 399, 1197, 21649, 64947, 151543, 194841, 411331, 454629, 1233993, 1363887, 2879317, 3701979, 8637951, 25913853]

約数ペア:

[(1, 25913853), (3, 8637951), (7, 3701979), (9, 2879317), (19, 1363887), (21, 1233993), (57, 454629), (63, 411331), (133, 194841), (171, 151543), (399, 64947), (1197, 21649)]