21099789

素因数分解:

$3^2\times {\mathrm{41}}^1\times {\mathrm{211}}^1\times {\mathrm{271}}^1$

素因数の和:529

約数の個数: 24

約数和(自身を含む): 31484544

約数和(自身を除く): 10384755

約数列:

[1, 3, 9, 41, 123, 211, 271, 369, 633, 813, 1899, 2439, 8651, 11111, 25953, 33333, 57181, 77859, 99999, 171543, 514629, 2344421, 7033263, 21099789]

約数ペア:

[(1, 21099789), (3, 7033263), (9, 2344421), (41, 514629), (123, 171543), (211, 99999), (271, 77859), (369, 57181), (633, 33333), (813, 25953), (1899, 11111), (2439, 8651)]