21854294

素因数分解:

$2^1\times 7^2\times {\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{97}}^1$

素因数の和:154

約数の個数: 72

約数和(自身を含む): 44576280

約数和(自身を除く): 22721986

約数列:

[1, 2, 7, 11, 14, 19, 22, 38, 49, 77, 97, 98, 121, 133, 154, 194, 209, 242, 266, 418, 539, 679, 847, 931, 1067, 1078, 1358, 1463, 1694, 1843, 1862, 2134, 2299, 2926, 3686, 4598, 4753, 5929, 7469, 9506, 10241, 11737, 11858, 12901, 14938, 16093, 20273, 20482, 23474, 25802, 32186, 40546, 52283, 82159, 90307, 104566, 112651, 141911, 164318, 180614, 223003, 225302, 283822, 446006, 575113, 993377, 1150226, 1561021, 1986754, 3122042, 10927147, 21854294]

約数ペア:

[(1, 21854294), (2, 10927147), (7, 3122042), (11, 1986754), (14, 1561021), (19, 1150226), (22, 993377), (38, 575113), (49, 446006), (77, 283822), (97, 225302), (98, 223003), (121, 180614), (133, 164318), (154, 141911), (194, 112651), (209, 104566), (242, 90307), (266, 82159), (418, 52283), (539, 40546), (679, 32186), (847, 25802), (931, 23474), (1067, 20482), (1078, 20273), (1358, 16093), (1463, 14938), (1694, 12901), (1843, 11858), (1862, 11737), (2134, 10241), (2299, 9506), (2926, 7469), (3686, 5929), (4598, 4753)]