28974855

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{21227}}^1$

素因数の和:21255

約数の個数: 32

約数和(自身を含む): 57060864

約数和(自身を除く): 28086009

約数列:

[1, 3, 5, 7, 13, 15, 21, 35, 39, 65, 91, 105, 195, 273, 455, 1365, 21227, 63681, 106135, 148589, 275951, 318405, 445767, 742945, 827853, 1379755, 1931657, 2228835, 4139265, 5794971, 9658285, 28974855]

約数ペア:

[(1, 28974855), (3, 9658285), (5, 5794971), (7, 4139265), (13, 2228835), (15, 1931657), (21, 1379755), (35, 827853), (39, 742945), (65, 445767), (91, 318405), (105, 275951), (195, 148589), (273, 106135), (455, 63681), (1365, 21227)]