28969857

素因数分解:

$3^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{19993}}^1$

素因数の和:20029

約数の個数: 24

約数和(自身を含む): 49905024

約数和(自身を除く): 20935167

約数列:

[1, 3, 7, 9, 21, 23, 63, 69, 161, 207, 483, 1449, 19993, 59979, 139951, 179937, 419853, 459839, 1259559, 1379517, 3218873, 4138551, 9656619, 28969857]

約数ペア:

[(1, 28969857), (3, 9656619), (7, 4138551), (9, 3218873), (21, 1379517), (23, 1259559), (63, 459839), (69, 419853), (161, 179937), (207, 139951), (483, 59979), (1449, 19993)]