21167708548

素因数分解:

$2^2\times 7^3\times {\mathrm{31}}^1\times {\mathrm{497689}}^1$

素因数の和:497745

約数の個数: 48

約数和(自身を含む): 44593024000

約数和(自身を除く): 23425315452

約数列:

[1, 2, 4, 7, 14, 28, 31, 49, 62, 98, 124, 196, 217, 343, 434, 686, 868, 1372, 1519, 3038, 6076, 10633, 21266, 42532, 497689, 995378, 1990756, 3483823, 6967646, 13935292, 15428359, 24386761, 30856718, 48773522, 61713436, 97547044, 107998513, 170707327, 215997026, 341414654, 431994052, 682829308, 755989591, 1511979182, 3023958364, 5291927137, 10583854274, 21167708548]

約数ペア:

[(1, 21167708548), (2, 10583854274), (4, 5291927137), (7, 3023958364), (14, 1511979182), (28, 755989591), (31, 682829308), (49, 431994052), (62, 341414654), (98, 215997026), (124, 170707327), (196, 107998513), (217, 97547044), (343, 61713436), (434, 48773522), (686, 30856718), (868, 24386761), (1372, 15428359), (1519, 13935292), (3038, 6967646), (6076, 3483823), (10633, 1990756), (21266, 995378), (42532, 497689)]