21094750978

素因数分解:

$2^1\times 7^2\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{301897}}^1$

素因数の和:301967

約数の個数: 48

約数和(自身を含む): 39647660544

約数和(自身を除く): 18552909566

約数列:

[1, 2, 7, 14, 23, 31, 46, 49, 62, 98, 161, 217, 322, 434, 713, 1127, 1426, 1519, 2254, 3038, 4991, 9982, 34937, 69874, 301897, 603794, 2113279, 4226558, 6943631, 9358807, 13887262, 14792953, 18717614, 29585906, 48605417, 65511649, 97210834, 131023298, 215252561, 340237919, 430505122, 458581543, 680475838, 917163086, 1506767927, 3013535854, 10547375489, 21094750978]

約数ペア:

[(1, 21094750978), (2, 10547375489), (7, 3013535854), (14, 1506767927), (23, 917163086), (31, 680475838), (46, 458581543), (49, 430505122), (62, 340237919), (98, 215252561), (161, 131023298), (217, 97210834), (322, 65511649), (434, 48605417), (713, 29585906), (1127, 18717614), (1426, 14792953), (1519, 13887262), (2254, 9358807), (3038, 6943631), (4991, 4226558), (9982, 2113279), (34937, 603794), (69874, 301897)]