16728789

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{139}}^1\times {\mathrm{521}}^1$

素因数の和:681

約数の個数: 32

約数和(自身を含む): 28062720

約数和(自身を除く): 11333931

約数列:

[1, 3, 7, 11, 21, 33, 77, 139, 231, 417, 521, 973, 1529, 1563, 2919, 3647, 4587, 5731, 10703, 10941, 17193, 32109, 40117, 72419, 120351, 217257, 506933, 796609, 1520799, 2389827, 5576263, 16728789]

約数ペア:

[(1, 16728789), (3, 5576263), (7, 2389827), (11, 1520799), (21, 796609), (33, 506933), (77, 217257), (139, 120351), (231, 72419), (417, 40117), (521, 32109), (973, 17193), (1529, 10941), (1563, 10703), (2919, 5731), (3647, 4587)]