21619927

素因数分解:

$7^2\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{331}}^1$

素因数の和:419

約数の個数: 24

約数和(自身を含む): 26644992

約数和(自身を除く): 5025065

約数列:

[1, 7, 31, 43, 49, 217, 301, 331, 1333, 1519, 2107, 2317, 9331, 10261, 14233, 16219, 65317, 71827, 99631, 441223, 502789, 697417, 3088561, 21619927]

約数ペア:

[(1, 21619927), (7, 3088561), (31, 697417), (43, 502789), (49, 441223), (217, 99631), (301, 71827), (331, 65317), (1333, 16219), (1519, 14233), (2107, 10261), (2317, 9331)]