21672781

素因数分解:

${\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{79}}^1\times {\mathrm{449}}^1$

素因数の和:588

約数の個数: 16

約数和(自身を含む): 24192000

約数和(自身を除く): 2519219

約数列:

[1, 13, 47, 79, 449, 611, 1027, 3713, 5837, 21103, 35471, 48269, 274339, 461123, 1667137, 21672781]

約数ペア:

[(1, 21672781), (13, 1667137), (47, 461123), (79, 274339), (449, 48269), (611, 35471), (1027, 21103), (3713, 5837)]